American Rhododendron Society Plant Registry
The following rhododendron and azalea names, submitted through the North American registrar, were approved and added to the International Rhododendron Register prior to August 1, 1999 by the Royal Horticultural Society, International Registration Authority for the genus
Rhododendron
. Names conform to the rules and recommendations of the
International Code of Nomenclature for Cultivated Plants - 1995
.
Color numbers refer to the RHS Colour Chart unless noted otherwise. Accompanying color names are taken from
A Contribution toward Standardization of Color Names in Horticulture
, R.D. Huse and K.L. Kelly, edited by D.H. Voss (ARS, 1984).
Parents of a plant are reported in the conventional order: (seed parent x pollen parent). Abbreviations are used where appropriate: H = hybridized by, G = grown to first flower by, R = raised by, S = selected by, N = named by, I = introduced by, REG = registered by; dates are enclosed in parentheses immediately following the activity.
Metric conversions of flower and leaf measurements are reported in 5mm (0.2") increments for dimensions greater than 25mm (1").
'Adeline Allison': Elepidote. ('Wheatley' x 'Kimberly'). H (1989): Marilyn J. Whitman; G (1996), N (1998), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls14/dome truss, broadly funnel-shaped, 2.25" (55mm) long x 3.5" (90mm) wide, 7 wavy-edged lobes; buds strong purplish pink (63C) at base, shading to strong purplish red (63B) at apex, opening very pale purple (69C) inside and out, with fine, faint veining of deep purplish pink (68A) at margins, and a faint, strong purplish red (63B) marking at base of dorsal lobe; anthers brown. Truss 7" (175mm) high x 6.5" (165mm) wide. Lvs ovate, flat, rounded base, obtuse apex, 6" (150mm) x 2.25" (55mm); semi-glossy, dark yellowish green (139A) above, hairless. Shrub 3.25' (1.0m) tall x 2' (0.6m) wide in 10 years; intermediate plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Early May.
'Alexa': Vireya. [( gardenia x aurigeranum ) x aurigeranum ]. H (1983), G (1991), N, and REG (1999): William Moynier, Los Angeles, CA. Fls 10-15/dome truss, tubular funnel-shaped, 3.25" (80mm) long x 3.25" (80mm) wide, with 5 slightly wavy-edged lobes, of heavy texture; vivid yellow (14A) throughout; towards end of bloom period, sometimes lightly flushed pastel orange at lobe tips. Truss 5.5" (140mm) high x 8"-9" (200-225mm) wide. Lvs held 4 years, elliptic, cuneate base, broadly acute apex, with upcurved margins, 5" (125mm) x 2.25" (55mm); dull green above, with tan scales below and on petiole. Shrub 3.3' (1.0m) tall x 3.2' (1.0m) wide in 14 years, dense habit. Plant and bud hardy to 32°F (0°C). Variable, throughout year. (Code FD-027A) (Identity of R. gardenia requires confirmation. It is described as an "imperfectly understood species in RHS Rhododendron Handbook (1998), p 220.)
'Alice Poore': Elepidote. (Parentage unknown). H (pre 1943): C.O. Dexter, Sandwich, MA; G and N: B.P.P. Moseley, Ipswich, MA; I: unknown; REG (1999): Richard H. Gustafson, West Windsor, NJ. Fls 13/dome to ball truss, openly funnel-shaped, 2" (50mm) long x 3" (75mm) wide, 6-8 wavy-edged lobes; deep to moderate purplish pink (73A, 74D) in bud, opening inside strong to light purplish pink (73B-C) at edge, fading to light purplish pink (73C) and very pale purple (73D) at lobe centers and in throat, with deep greenish yellow (153A) dorsal spotting; outside (73B) at edge, shading to (73C-D) at center. Truss 5" (125mm) high x 5.5" (140mm) wide. Lvs elliptic, flat, rounded base, obtuse apex with small mucro, 3" (75mm) x 1.9" (50mm); dull, moderate yellow green (138A) above, hairless. Shrub 5' (1.5m) tall x 7' (2.1m) wide in 12 years; dense plant habit. Plant and bud hardy to at least -8°F (-22°C). Mid-late May.
'Anacapa': Vireya. ('Marshall Pierce Madison' x javanicum ). H (1989), G (1993), N, and REG (1999): William Moynier, Los Angeles, CA. Fls 14-19/dome truss, tubular funnel-shaped, 4" (100mm) long x 4" (100mm) wide, with 5-6 wavy-edged lobes; vivid reddish orange (43B) throughout; lightly scented. Truss 6.5" (165mm) high x 9" (225mm) wide. Lvs held 3 years, elliptic, cuneate base, acute apex, flat, 7" (175mm) x 2.5" (65mm); glossy, moderate olive green (137A) above, with tan scales below and on petiole. Shrub 3.5 (1.1 m) tall x 3.8' (1.2m) wide in 10 years. Plant and bud hardy to 32°F (0°C). February-April. (Code FJ-172A)
'Angel's Breath': Elepidote. [ pseudochrysanthum , Ben Nelson form x ( yakushimanum x 'Leo)] . H (1993): Marilyn J. Whitman; G (1998), N (1998), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls 15/dome truss, broadly funnel-shaped,2" (50mm) long x 3" (75mm) wide, 5 flat-edged lobes; strong purplish pink (55B) in bud, opening inside light purplish pink (55C) with a pale yellow (18C) center; outside strong purplish pink (55B). Truss 4.5" (115mm) high x 5.5" (140mm) wide. Lvs narrowly oblong, oblique base, broadly acute apex, wavy margins, 6" (150mm) x 2" (50mm); semi-glossy, moderate olive green (137A) above, hairless. Shrub 1.5' (0.45m) tall x 2' (0.6m) wide in 6 years; dense plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Early May.
'Bubble Bath': Elepidote. [('Janet Blair' x 'Pink Petticoats') x yellow-flrd decorum ]. H (1986), G (1989), and REG (1999): G. Wyatt LeFever, Kernersville, NC. Fls 14/ball truss, openly funnel-shaped, 2.5" (65mm) long x 3.25" (80mm) wide, with 5 frilly-edged lobes; pink in bud, opening white inside and out, with a green throat; scented. Truss 6" (150mm) high x 5" (125mm) wide. Lvs purplish pink (63C). Truss 6" (150mm) high x 7" (175mm) wide. Lvs elliptic, flat, slightly oblique base, obtuse apex, 5" (125mm) x 2.75" (70mm); semi-glossy, moderate olive green (137A) above, hairless; new growth bronze with strong yellow green (145A) mid veins. Shrub 3' (0.9m) tall x 4' (1.2m) wide in 10 years; intermediate plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Early May.
'Cutie Pie': Elepidote. [('Mars' x 'Phipps Yellow'*) x pseudochrysanthum , Ben Nelson form]. H (1993): Marilyn J. Whitman; G (1998), N (1998), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls 5/dome truss, broadly funnel-shaped, 2" (50mm) long x 3" (75mm) wide, 5 frilly-edged lobes; vivid red (57A) in bud, opening inside light purplish pink (66D), flushed strong purplish pink (66B) on dorsal lobes, with deep red (60A) spotting on dorsal lobe and a small blotch of strong purplish red (60B) in the throat; outside vivid purplish red (66B) with strong purplish red (67A) veining overall. Truss 4" (100mm) high x 5.5" (140mm) wide. Lvs oblong, oblique base, broadly acute apex, wavy margins, 5" (125mm) x 2.25" (55mm); dull, moderate olive green (137A) above, hairless. Shrub 0.8' (0.25m) tall x 1' (0.3m) wide in 6 years; intermediate to dense plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Early May.
'Dexter's Orchid': Elepidote. (Parentage unknown). H (pre 1943): C.O. Dexter, Sandwich, MA; G: probably S.A. Everitt; N (pre 1959): Paul Vossberg, Westbury, NY; I (c 1959): Westbury Rose Nursery, Westbury, NY; REG (1999): Richard H. Gustafson, West Windsor, NJ. Fls 11/lax truss, funnel-shaped, 2.75" (70mm) long x 3.5" (90mm) wide, 5 wavy-edged lobes; inside moderate to light purplish pink (62B-C), shading to light to pale purplish pink (65B-C), with pale green dorsal spots; outside moderate purplish pink (62B). Truss 7" (175mm) high x 7" (175mm) wide. Lvs held 2-3 years, elliptic, flat, oblique base, broadly acute apex, 5"-6" (125-150mm) x 2.4"-2.5" (60-65mm); semi-glossy, moderate olive green (137A) above, hairless. Shrub 7' (2.1m) tall x 6' (1.8m) wide in 18 years; open plant habit. Plant and bud hardy to at least -8°F (-22°C). Mid May.
'Durango': Elepidote. ('Ruby Bowman' x elliottii 'War Paint'). H (1975), G (1984), N (1994), and REG (1999): David W. Goheen, Camas, WA; I (1995): Chris Hoffman, A Sandy Rhododendron, Sandy, OR. Fls 16-18/dome truss, funnel-campanulate, 2.5" (65mm) long x 3.5" (90mm) wide, 5 wavy-edged lobes; strong red (53C) in bud, opening inside deep purplish pink (54B), the dorsal lobes with a strong red (53C) blotch; outside strong purplish red (54A); nectaries strong red (53C). Calyx minute, strong red (53C) tinged green. Truss 4"-5" (100-125mm) high x 6.5"-8" (165-200mm) wide. Lvs held 3 years, elliptic, cuneate base, broadly acute apex, down curved margins, 7"-8" (175-200mm) x 2.5"-3.5" (65-90mm); dull, dark green (136A) above, with hairy indumentum below (except on midrib), tan aging to brownish orange (164A). Shrub 6' (1.8m) tall x 6' (1.8m) wide in 15 years; dense plant habit. Plant and bud hardy to at least 5°F (-15°C). Late April-May. (Best Hybrid Rhododendron, 1999 Mothers Day show, Portland, OR)
'Emily Baker': Elepidote. ('Aunt Martha' x ponticum ). H (1989), G (1993), N, and REG (1999): Harry S. Baker, Longview, WA. Fls 15-17/dome truss, funnel-shaped, 1" (25mm) long x 0.75" (20mm) wide, 5 frilly-edged lobes; very light purple (85C) in bud, opening very light purple (85C) inside and out, the outside margin slightly lighter; with 18-20 grayish red (182B) dorsal spots. Truss 4"-4.5" (100-115mm) high x 4"-4.5" (100-115mm) wide. Lvs elliptic, flat, cuneate base, obtuse apex, 3.5"-5.5" (90-140mm) x 1.5"-2" (40-50mm); dull, moderate yellow green (139C) above, hairless. Shrub 4' (1.2m) tall x 3.5' (1.1m) wide in 10 years; intermediate plant habit. Plant and bud hardy to at least 0°F (-18°C). Late May.
'Firecracker Marcia': Lepidote. {( keiskei (as var. cordifolium ) RSF 79/164 x spinuliferum RSF 69/834) x [(['Mary Fleming' x spinuliferum RSF 69/834] x ( racemosum x spinuliferum ]) x ( keiskei x spinuliferum )]}. H (1990), G (1995), N (1999), and REG (1999): Pat Halligan, Freeland, WA. Fls 5-6/ball truss, openly funnel-shaped, 0.75" (20mm) long x 1.25" (30mm) wide, with 5 wavy-edged lobes; opening inside strong pink (48C) with yellow overtones, outside strong red (47B); in the sun, color darkens with age to a shade between strong red (47B) and strong red (53C); in deep shade, color darkens only slightly. Truss 2" (50mm) high x 2" (50mm) wide. Lvs held 2 years, elliptic, broadly acute apex, rounded base, slightly down curved margins, 1"-2" (25-50mm) x 0.5"-0.75" (13-20mm); semi-glossy, dark green (136A) above, with inconspicuous yellowish scales below. Shrub 2' (0.6m) tall x 2' (0.6m) wide in 10 years; intermediate plant habit. Plant and bud hardy to 10°F (-12°C). Late March-early April.
'Florence Phillips': Evergreen azalea. ('Easter Parade' x 'Hampton Beauty'). H (1991), G (1993), N, and REG (1999): Mark Phillips, Cary, NC. Fls 20/multi-bud cluster, openly funnel-shaped, 2" (50mm) long x 2.5" (65mm) wide, with 5 wavy-edged lobes; inside medium pink at margins, shading lighter towards center, with a prominent yellow/green, speckled blotch on three dorsal lobes; outside pink, shading lighter at base. Terminal cluster 6" (150mm) high x 6.5" (165mm) wide. Calyx 0.25" (6mm) long, green. Lvs mainly elliptic with slightly emarginate apex, cuneate base, upcurved margins, 2" (50mm) x 1.25" (30mm); glossy, dark green above, with hairs above, below, and on petiole. Shrub 2' (0.6m) tall x 1.5' (0.45m) wide in 3 years; upright, branching habit. Plant and bud hardy to -8°F (-22°C). Late April.
'Gary Gee': Lepidote. ( keiskei 'Yaku Fairy' x white-flrd racemosum ). H (1992), G (1995), N (1999), and REG (1999): G. David Lewis, Colts Neck, NJ. Fls 3-5/bud, with 1-3 buds/terminal, openly funnel-shaped, 1.25" (30mm) long x 1.5" (40mm) wide, 5 wavy-edged lobes; in bud, pale yellow green (4D) tipped with vivid purplish red (57C); opening white throughout, the lobes occasionally tipped inside with (57C). Calyx minute, light yellow green (145B). Lvs elliptic, flat, cuneate base, broadly acute apex, 1.25" (30mm) x 0.6" (15mm); dull, moderate olive green (147A) above. Shrub 0.5' (0.15m) tall x 1.25' (0.4m) wide in 6 years; dense plant habit. Plant and bud hardy to at least-5°F (-21°C). Late April.
'George Munro's Favorite': Elepidote. (Parentage unknown). H and G (pre 1965): William E. Whitney, Brinnon, WA; N (1999), I, and REG (1999): Briggs Nursery, Olympia, WA. Fls 11-12/dome truss, openly funnel-shaped, 1.75"-2" (45-50mm) long x 2.5" (65mm) wide, 5 frilly-edged lobes; vivid red (45B) in bud, opening inside vivid red (52A) at margins, shading to greenish white (155C) at center; outside vivid red (52A); unmarked. Calyx 1"-1.25" (25-30mm) long, colored as corolla. Truss 3" (75mm) high x 6" (150mm) wide. Lvs held 3 years, elliptic, cuneate base, acute apex, down curved margins, 3"-4" (75-100mm) x 1"-1.5" (25-40mm); semi-glossy, moderate olive green (147A) above; hairy above (leaf edge near base), below, and on petiole; indumentum moderate orange yellow (165C) at first, becoming brownish orange (165B). Shrub 2' (0.6m) tall x 3' (0.9m) wide in 6 years; dense plant habit. Mid-late May. (Synonym: 'Whitney's Yak No. 7').
'Glenwood Ivory': Lepidote. [('Carolina Nude' x white-flrd dauricum ) x keiskei , as epiphytic form]. H (1992), G (1995), N (1999), and REG (1999): G. David Lewis, Colts Neck, NJ. Fls 7/truss, broadly funnel-shaped, 1.25" (30mm) long x 2" (50mm) wide, 5 wavy-edged lobes; buds pale yellow green (4D), the apex tinged with light purplish pink (63D); corolla opening pale yellowish pink (159D), lightly tinged with pale purplish pink (62D) inside and out; dorsal lobe spotted with strong orange yellow (22A). Calyx minute, strong yellow green (145A). Lvs lanceolate, flat, cuneate base, acute apex, 3" (75mm) x 1" (25mm); semi-glossy, moderate olive green (137A) above. Shrub 1.5' (0.45m) tall x 2.5' (0.75m) wide in 6 years; dense plant habit. Plant and bud hardy to at least -5°F (-21°C). Early May.
'Glenwood Peach': Lepidote. ( keiskei , as epiphytic form x racemosum ). H (1987), G (1990), N (1999), and REG (1999): G. David Lewis, Colts Neck, NJ. Fls 3-4/bud, with 3-4 buds/terminal, openly funnel-shaped, 1" (25mm) long x 1.25" (30mm) wide, 5 wavy-edged lobes; buds pale yellow (11D) at base, changing to deep purplish pink (66C) at apex, opening pale yellow (11D), flushed inside with vivid purplish red (66B), and outside with deep purplish pink (66C); unmarked. Calyx minute, strong yellow green (145A). Lvs held 1.5 years, lanceolate, cuneate base, acute apex, 1.75" (45mm) x 0.6" (15mm); dull, moderate olive green (147A) above, scaly (sparse above, more numerous below). Shrub 4.5' (1.4m) tall x 4.5' (1.4m) wide in 12 years; intermediate plant habit. Plant and bud hardy to at least -10"F (-23"C). Late April or very early May.
'Hamish Robertson': Lepidote. {[ nuttallii x ( dalhousiae x lindleyi )] x dalhousiae }. H (c 1988): unknown; G (1996), N, and REG (1999): R. Hamish Robertson, Victoria, B.C., Canada. Fls 3-5/truss, funnel-campanulate, with 5 wavy-edged, reflexed lobes, 4"-4.4" (100-110mm) long x 4"-4.8" (100-120mm) wide; white, faintly striped pink, with a large, internal, yellow blotch at base. Lvs held 2 years, elliptic, cuneate base, down curved margins, bullate above, with conspicuous network of veins below, and with very small brown scales below, visible only with hand lens; 6.8"-7.2" (170-180mm) x 2.8"-3.2" (70-80mm); new growth purple. Shrub 6' (1.8m) tall in 10 years; compact plant habit. Plant and bud hardy to at least 23°F (-5°C). Mid May.
'Helen B.': Elepidote. ('Red Paint' x 'Royston Red'*). H (1985), G (1994), N (1997), and REG (1999): David W. Goheen, Camas, WA; I (1997): Chris Hoffman, A Sandy Rhododendron, Sandy, OR. Fls 12-14/dome truss, funnel-shaped, 2.5" (65mm) long x 3" (75mm) wide, 5 wavy-edged lobes; vivid red (45A) in bud, opening vivid red (45B) throughout, with sparse dorsal spotting of strong red (46A). Calyx minute, vivid red (45A). Truss 4" (100mm) high x 6" (150mm) wide. Lvs held 3 years, obovate, cuneate base, broadly acute apex, flat to somewhat wavy margins, 4"-6" (100-150mm) x 1.5"-1.75" (40-45mm); semi-glossy, moderate olive green (137B) above, hairless. Shrub 5' (1.5m) tall x 6' (1.8m) wide in 12 years; intermediate plant habit. Plant and bud hardy to at least 5°F (-15°C). Midseason.
'Herald Square': Elepidote. ('Vulcan' x pseudochrysanthum ). H (1980): John Nicolella, Hampton Bays, NY; G, N, and REG (1999): Richard H. Gustafson, West Windsor, NJ. Fls 10/dome truss, openly funnel-shaped, 2" (50mm) long x 3" (75mm) wide, 6 flat-edged lobes; vivid purplish red (66B) in bud, opening inside vivid red (57A) and strong purplish pink (63C), outside vivid red (57A); unmarked. Truss 4"-5" (100-125mm) high x 6" (150mm) wide. Lvs held 2-3 years, elliptic, flat, rounded base, broadly acute apex, 4"-4.4" (100-110mm) x 1.5"-1.75" (40-45mm); moderate olive green (147A) above, hairless. Shrub 5.5' (1.7m) tall x 6.5' (2.0m) wide in 19 years; intermediate plant habit. Plant and bud hardy to at least -8°F (-22°C). Late April-early May. (ARS Seed Exchange 81-1098)
'Hot Ticket': Elepidote. ['Yaku Sunrise' x 'Rocket' (Shammarello)]. H (1991): Marilyn J. Whitman; G (1998), N (1999), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls 18/dome truss, broadly funnel-shaped, 1.5" (40mm) long x 2.5" (65mm) wide, 5 wavy-edged lobes; vivid purplish red (66A) in bud, opening inside vivid purplish red (66B) at margins, shading to pale purplish pink (65D) center; outside pale purplish pink (66C) with light purplish pink (66B) midribs; inside ages to (65D).Truss 4.25" (105mm) high x 5" (125mm) wide. Lvs elliptic, rounded base, broadly acute apex, wavy margins, 6" (150mm) x 2.75" (70mm); dull, moderate olive green (137B) above, hairless. Shrub 1.8' (0.5m) tall x 1.7' (0.5m) wide in 8 years; intermediate plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Early May.
'Island Tease': Elepidote. [( catawbiense 'Powell Glass' x yakushimanum ) x 'War Dance']. H (1994): Marilyn J. Whitman; G (1999), N (1999), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls21/dome truss, openly funnel-shaped, 2.5" (65mm) long x 3" (75mm) wide, 5 wavy to frilly-edged lobes; strong reddish purple (70B) in bud, opening very pale purple (69B) throughout, with deep purplish red (71A) spotting on dorsal lobe; tips of lobes are faintly marked strong purple (89B) inside, and outside is veined with strong purplish red (71D). Truss 6.5" (165mm) high x 7" (175mm) wide. Lvs oblong, rounded base, broadly acute apex, margins flat or wavy, 5.5" (140mm) x 2.25" (55mm); dull, moderate olive green (137A) above, hairless. Shrub 2' (0.6m) tall x 2' (0.6m) wide in 5 years; intermediate plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Early May.
'Kathy Lou': Elepidote. (Parentage unknown). H (c 1993): unknown; G, N, and REG (1999): Louis F. Seeds, Bethlehem, PA. Fls 10/dome truss, openly funnel-shaped, 2" (50mm) long x 2.75" (70mm) wide, 5 wavy-edged lobes; deep pink, tinged orange inside and out, the interior speckled with small, dark spots, more numerous on dorsal and upper laterals than lower lateral lobes, and with bands of paler color (nearly white) extending from tips of lobes towards center. Calyx 1" (25mm) long, colored as corolla. Truss 4" (100mm) high x 5.25" (130mm) wide. Lvs elliptic, cuneate base, acuminate apex, down curved margins, 3.5" (90mm) x 1.4" (35mm); dull, dark green above, hairless. Shrub 2.5' (0.75m) tall x 3' (0.9m) wide in 5 years; open plant habit. Plant and bud hardy to at least -10°F (-23°C). Mid May.
'Lake Amaru': Vireya. ( konori x laetum ). H: unknown, possibly J.L. Rouse, Australia; G (c 1985): possibly Peter Schick, Fort Bragg, CA or Arne Jensen, Waldport, OR; N (1999) and REG (1999): Lucie Sorensen-Smith, Portland, OR; I (1999): The Bovees Nursery, Portland, OR. Fls 5-6/flat truss, tubular with 5-6 flat-edged, widely flared lobes, 2.75" (70mm) long x 3" (75mm) wide; strong pink (48C-D) in bud, opening inside strong pink (48C-D); outside of tube moderate reddish orange (42D) becoming light yellow (18A) at base, outside of lobes strong pink (48D) with strong reddish orange (42B-C) stripes extending to mid-tube; scented. Calyx c 0.1" (3mm) long, dark red. Truss 3" (75mm) high x 6" (150mm) wide. Lvs held 2 years, elliptic, flat, cuneate base, broadly acute apex, 3.5" (90mm) x 2" (50mm); dull, dark yellowish green (139A) above, with medium brown scales above and below. Shrub 4' (1.2m) high x 2.5' (0.75m) wide in 10 years, intermediate plant habit. Plant hardy to 30°F (-1°C). Blooms several times a year. (Code: Bovees No. 193)
'Lemon Dream': Elepidote. ('Creamy Chiffon' (s) X R. yakushimanum , Exbury form.). H (1983), G (1989), and N: Steven M. McCulloch; REG (1999): Briggs Nursery; both Olympia, WA. Fls 13/dome truss, broadly funnel-shaped, 1.5" (40mm) long x 2.5" (65mm) wide, usually with 5 wavy-edged lobes; sometimes fls are double; light greenish yellow (3C) throughout. Calyx c 0.1" (3mm) long, strong yellow green (145A). Truss 3.5" (90mm) high x 5.5" (140mm) wide. Lvs held 2-3 years, elliptic, broadly acute apex, rounded base, upcurved margins, 2.5" (65mm) x 1.25" (30mm); dull, dark green above, with felted hairs below (yellowish gray (156C) at first, maturing to brownish orange (164A)); new foliage only with powdery indumentum above. Shrub 0.75' (0.25m) tall x 1.25' (0.4m) wide in 9 years; dense, spreading plant habit. Bud hardy to at least 0°F (-18°C). Mid May. [Correct parentage to ('Creamy Chiffon' (s) x R. yakushimanum, Exbury form) - mod 04/04/16, ref ]
'Lemon Twist': Lepidote. ( keiskei var. ozawae x lutescens 'Bagshot Sands'). H (1987): Tsuneshige Rokujo, Tokyo, Japan; G (1992), N (1997), and REG (1999): A. Richard Brooks, Concord, MA. Fls 3-8/multi-bud terminal, broadly funnel-shaped, 1.4" (35mm) long x 2.25" (55mm) wide, 5 wavy-edged lobes; light greenish yellow (4B) in bud, opening light greenish yellow (8C) inside and out, with very faint moderate yellow (163C) spotting where dorsal lobe meets adjacent lobes. Calyx very short (c 1.5mm), brilliant yellow green (150A). Terminal inflorescence 2.5" (65mm) high x 3" (75mm) wide. Lvs held 2 years, lanceolate, flat, rounded base, acuminate apex, 2"-2.5" (50-65mm) x 0.75"-1" (20-25mm); semi-glossy, moderate olive green (137A) above, with widely spaced scales below. Shrub 2.5' (0.75m) tall x 4' (1.2m) wide in 11 years; intermediate plant habit. Plant hardy to at least -16°F (-26°C); buds, -5°F (-21°C). Early May. (ARS Seed Exchange 88-1069)
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| Rhododendron 'Lemon Twist' |
'Maneau Ra': Vireya. ( konori x christianae ). H: unknown (pre 1985); G: probably Peter Schick, Fort Bragg, CA; N (1999) and REG (1999): Lucie Sorensen-Smith, Portland, OR; I (1999): The Bovees Nursery, Portland, OR. Fls 5/flat truss, long tubular funnel-shaped, 3.5" (90mm) long x 3" (75mm) wide, with 5-7 wavy-edged lobes; strong yellowish pink (43D) in bud, opening inside with strong yellowish pink (43D) lobes and a golden throat, outside with pale greenish yellow (13D) lobes edged (43D), and a light yellow (15D) tube; scented. Calyx very short (c 1.5mm), light red. Truss 3" (75mm) high x 7.25" (180mm) wide. Lvs held 2 years, obovate, rounded base, obtuse apex, 4.5" (115mm) x 2.75" (70mm); moderate olive green (137A) above; scales not noticeable to the naked eye. Shrub 5' (1.5m) high x 3' (0.9m) wide in 10 years, intermediate plant habit. Plant hardy to 30°F (-1°C). Blooms several times a year. (Code: Bovees No. 95)
'Milky Way': Lepidote. (selection from tomentosum var. tomentosum ). G, S (1996), N (1997), I (2000), and REG (1999): Rhododendron Species Foundation, Federal Way, WA. Fls c 100/dense ball to dome-shaped truss, saucer-shaped, c 0.4" (10mm) long x 0.8" (20mm) wide, with 5 flat-edged lobes; white in bud, opening yellowish white (155D) throughout, unmarked, with a prominent, bright green ovary. Calyx minute, green. Truss 3" (75mm) high x 2.5" (65mm) wide, consisting of 6-7 buds, with up to 20 fls each. Lvs held 2 years, narrowly lanceolate-elliptic, rounded base, broadly acute apex, down curved margins, 2" (50mm) x 0.5" (13mm), semi-glossy, deep green above, with reddish brown hairs below and on young stems. Shrub 3' (0.9m) tall x 5' (1.5m) wide in 12 years, dense plant habit. Plant hardy to at least -30°F (-34"C); buds, -20°F (-29"F). Early-mid April.
'Pink, Pink, Pink': Elepidote. ('Wheatley' x 'Kimberly'). H (1989): Marilyn J. Whitman; G (1995), N (1998), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls 9/dome truss, broadly funnel-shaped, 2.5" (65mm) long x 3.5" (90mm) wide, 7 wavy-edged lobes; vivid purplish red (67B) in bud, opening inside with (67B) margins, shading to pale purplish pink (65C) center, with two flares of deep purplish red (59B) in dorsal throat; outside deep purplish pink (67C). Truss 5" (125mm) high x 6" (150mm) wide. Lvs obovate, flat, rounded base, obtuse apex, 5" (125mm) x 2.5" (65mm); dull, moderate olive green (137A) above, hairless. Shrub 3' (0.9m) tall x 3' (0.9m) wide in 10 years; intermediate plant habit. Plant hardy to at least -15°F (-26°C) buds, -10°F (-23°C). Early May.
'Plane View Appleblossom': Lepidote. (Branch sport from PJM Group). G, S, N, and I: Michael J. Medeiros, Portsmouth, RI; REG (1999): A. Richard Brooks, Concord, MA. Fls 8-12/multi-bud terminal, openly funnel-shaped, 1.25" (30mm) long x 2" (50mm) wide, 5 flat-edged lobes; buds moderate purplish pink (186D) at apex, shading to pale purplish pink (65D) at base, opening inside moderate purplish pink (186D) with very light speckling of moderate purplish red (186B) at base of dorsal lobe; outside moderate purplish pink (186D) shading to deep purplish pink(70C) at base of midribs. Calyx very short (c 1.5mm), light yellow green (145C). Terminal inflorescence ball-shaped, 2" (50mm) high x 3" (75mm) wide. Lvs held 2 years, elliptic, flat, rounded base, obtuse apex, 1.25"-2" (30-50mm) x 0.75"-1" (20-25mm); semi-glossy, dark green (136A) above, with numerous, rust-colored scales below; lvs develop mahogany tint in winter. Shrub 3' (0.9m) tall x 2' (0.6m) wide in 6 years; dense plant habit. Plant hardy to at least -25°F (-32°C); buds, (estimated) -25°F (-32°C). Late April.
'Queen of Bhutan': Elepidote. (selection from arboreum ssp. cinnamomeum ). Seed collected wild in Bhutan, sent by Andrew Yse, Hong Kong; G (1985), S (1994), N (1994), and REG (1999): David W. Goheen, Camas, WA; I (1995) Chris Hoffman, A Sandy Rhododendron, Sandy, OR. Fls 12-15/dome truss, funnel-campanulate, 2" (50mm) long x 2" (50mm) wide, 5 wavy-edged lobes; vivid red (45B) in bud, opening inside deep purplish pink (55A) with deep purplish red (61A) spots in tube, more numerous dorsally; outside strong purplish pink (55B). Calyx minute, greenish, tinged strong purplish pink (55B). Truss 3" (75mm) high x 4.5"-5" (115-125mm) wide. Lvs held 3 years, elliptic, flat, cuneate base, broadly acute apex, 3"-5" (75-125mm) x 1"-1.5" (25-40mm); semi-glossy, dark green (136A) above, with grayish brown hairs below (less prominent on midrib and veins), indumentum aging to moderate orange yellow (165C). Shrub 12' (3.7m) tall x 8' (2.5m) wide in 25 years; intermediate plant habit. Plant hardy to at least 8°F (-13°C); buds, 10°F (-12°C). March-April.
'Red House': Elepidote. (Parentage unknown). H (pre 1943): C.O. Dexter, Sandwich, MA; G: probably Richard Schwoebel, Philadelphia, PA area; N and I: Unknown; REG (1999): Richard H. Gustafson, West Windsor, NJ. Fls 16-17/dome truss, openly funnel-shaped, 2.25" (55mm) long x 3.5" (90mm) wide, 7-lobed; strong purplish red (60C) in bud, opening inside deep purplish pink (66C) and vivid purplish red (67B) with dark brown to black spotting on dorsal lobe, and faint gray to brown spotting on other lobes; outside vivid purplish red (67B) to deep purplish pink (67C). Truss 5" (125mm) high x 7" (175mm) wide. Lvs held 2 years, elliptic, flat, rounded base, broadly acute apex, 4.25"-4.75" (105-120mm) x 1.5"-1.8" (40-45mm); dull, moderate olive green (137A-B) above, hairless. Shrub 5.5' (1.7m) tall x 7' (2.1m) wide in 10 years; open to intermediate plant habit. Plant and bud hardy to at least -8°F (-22°C). Late May.
'Roger's Choice': Elepidote. ('Vulcan's Flame' x 'Kimberly'). H (1991): Marilyn J. Whitman; G (1998), N (1998), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls 5/lax truss, funnel-shaped, 1.75" (45mm) long x 2.5" (65mm) wide, 5 wavy-edged lobes; vivid red (57A) fading to strong purplish red (58B) in bud, opening strong purplish red (58B-C) inside, with deep purplish red (61A) spotting extending almost entire length of dorsal lobe; outside (58B). Truss 3" (75mm) high x 5.5" (140mm) wide. Lvs elliptic, flat, cordate base, broadly acute apex, 2.75" (70mm) x 1.5" (40mm); dull, moderate olive green (137A) above, hairless; new growth dark red (183A) with light yellow green (142C) mid veins. Shrub 2.3' (0.7m) tall x 2.3' (0.7m) wide in 7 years; intermediate plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Mid April.
'Sammamish': Elepidote. (Parentage unknown). H (1991): unknown, New Zealand; G (1996), N (1999), and REG (1999): Robert E. George, Issaquah, WA. Fls 24/dome truss, campanulate, 1.5" (40mm) long x 2" (50mm) wide, 5 wavy to frilly-edged lobes; deep purplish pink (55A) in bud, opening inside pale purplish pink (56C); outside strong and pale purplish pink (55B, 56C) swirled together to produce a striped effect. Calyx 1.5" (40mm) long, colored as corolla. Truss 4" (100mm) high x 6" (150mm) wide. Lvs held 4+ years, narrowly elliptic, cuneate base, broadly acute apex, down curved margins, 6" (150mm) x 1.5" (40mm); dull green above, with sparse, cinnamon colored hairs below and at margins; petioles yellow. Shrub 2' (0.6m) tall x 3.5' (1.1m) wide in 7 years; open plant habit. Plant and bud hardy to at least 5°F (-15°C). Early June.
'Sitting Pretty': Elepidote. ('Westbury' x 'The Honourable Jean Marie de Montague'). H (1993): Marilyn J. Whitman; G (1998), N (1998), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls 14/dome truss, broadly funnel-shaped, single to semi-double (some petaloid stamens), 2.5" (65mm) long x 4" (100mm) wide, 5-7 (-11) flat to wavy-edged lobes; vivid red (57A) in bud, opening inside vivid purplish red (67B) at edges, shading to white in center, with very faint reddish dorsal spotting; outside strong and vivid purplish red (67A-B) with vivid purplish red (57B) midribs. Truss 6" (150mm) high x 6.5" (165mm) wide. Lvs oblong, down curved margins, rounded base, broadly acute apex, 8" (200mm) x 3" (75mm); dull, slightly darker than moderate olive green (147A) above, hairless. Shrub 2.25' (0.7) tall x 2' (0.6m) wide in 5 years; dense plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Early May.
'Tabasco's Sister': Elepidote. ('Frango' x 'Estacada'). H (1979), G (1988), and REG (1999): David W. Goheen, Camas, WA; N (1995) and I (1995): Chris Hoffman, A Sandy Rhododendron, Sandy, OR. Fls 12-14/dome truss, funnel-campanulate, 2" (50mm) long x 2.5" (65mm) wide, 5 wavy-edged lobes; strong red (46A) in bud, opening inside moderate reddish orange (41C) veined with strong red (46A), and with a small, (46A) blotch in throat; outside strong red (41B). Calyx minute, strong red (41B) tinged green. Truss 4" (100mm) high x 6" (150mm) wide. Lvs held 3 years, elliptic, rounded base, broadly acute apex, wavy margins, bullate, 2.5"-4.5" (65-115mm) x 1"-1.5" (25-40mm); glossy, dark yellowish green (139A) above, with hairy indumentum below, pale yellow green (155A) aging to yellowish white (156D). Shrub 3.5'-4.5' (1.1-1.4m) tall x 3.5'-4.5' (1.1-1.4m) wide in 10 years; dense plant habit. Plant and bud hardy to at least 5°F (-15°C). Midseason.
'Terry Greer': Deciduous azalea. (Selection from alabamense ). Collected wild in southwestern GA (1960s), and G (1960s): Ms. Terrence Greer, Travelers Rest, SC; N (1998) and REG (1999): N. Anastos, Marietta, SC, and L. Clarence Towe, Walhalla, SC. Fls 7-10/dome truss, tubular funnel-shaped, 1.75" (45mm) long x 1.75" (45mm) wide, 5 wavy-edged lobes, scented; white with a light greenish yellow (8B) dorsal blotch; bud scales yellow to brown, with brown margins. Calyx negligible, green. Truss 3" (75mm) high x 5" (125mm) wide. Lvs elliptic to obovate, acute base and apex, with small mucro and conspicuous veins, 1.75"-2.25" (45-55mm) x 0.75"-1" (20-25mm); semi-glossy, dark green (136A) above, markedly glaucous (light gray) below. Shrub 12' (3.7m) tall x 6' (1.8m) wide in 15 years; intermediate plant habit. Plant hardy to at least -15°F (-26°C); buds, -5°F (-21°C). Mid-late April.
'Toccata': Elepidote. (Parentage unknown). H (pre 1962): John C. Cowles, Stow, MA; G: Heritage Plantation, Sandwich, MA; N and REG (1999): Richard H. Gustafson, West Windsor, NJ. Fls 10/ dome to ball truss, broadly funnel-shaped, 2.75" (70mm) long x 5" (125mm) wide, 7-8 wavy-edged lobes; moderate purplish pink (65A, 68C) in bud, opening inside with c 0.5" (10-15mm) wide margins of moderate to light purplish pink (65A-B), shading to white in center of lobes and base, and with a small, strong yellow green (144C) dorsal flare; outside light purplish pink (65B), flushed moderate purplish pink (65A) on midribs. Truss 5" (125mm) high x 6"-6.5" (150-165mm) wide. Lvs held 2 years, elliptic, flat, rounded base, broadly acute apex, 5"-5.75" (125-145mm) x 1.75" (45mm); semi-glossy, moderate olive green (137A) above, hairless. Shrub 3' (0.9m) tall x 4' (1.2m) wide in 12 years; dense plant habit. Plant and bud hardy to at least -8°F (-22°C). Mid-late May. (Code HP-575)
'Tracigo's Sister': Elepidote. ( yakushimanum x sperabile ). H (1963), G (1970), and REG (1999): David W. Goheen, Camas, WA; N (1994) and 1 (1994): Chris Hoffman, A Sandy Rhododendron, Sandy, OR. Fls 8-10/ball truss, broadly funnel-shaped, 2" (50mm) long x 2.5" (65mm) wide, 5 lobes; deep purplish pink (55A) in bud, opening inside light to pale yellowish pink (36C-D) with a very small blotch of deep yellowish pink (39B) in base; outside deep yellowish pink (39B). Calyx minute, light green. Truss 3"-4" (75-100mm) high x 3"-4" (75-100mm) wide. Lvs held 3 years, elliptic, flat, rounded base, broadly acute apex, 2"-4" (50-100mm) x 1" (25mm); dull, moderate yellowish green (138A) above, with brownish orange (165B) hairs below (except for midrib). Shrub 3' (0.9m) tall x 3' (0.9m) wide in 10 years; dense plant habit. Plant and bud hardy to at least 5°F (-15°C). Midseason.
'Violet Vamp': Elepidote. ('Vossberg No. 2'* x self). H (1990): Marilyn J. Whitman; G (1998), N (1999), and REG (1999): Marilyn and Bud Whitman, Wall, NJ. Fls 11/dome truss, openly funnel-shaped, 1.75" (45mm) long x 3" (75mm) wide, 7 wavy to frilly-edged lobes; vivid purple (80A) in bud, opening inside very pale purple (76C) edged vivid purple (80A) and with a pale yellow flare extending from base to about the mid point of dorsal lobe; outside light purple (75A) edged vivid purple (80A). Truss 5.5" (140mm) high x 6" (150mm) wide. Lvs oblong, flat, cordate base, broadly acute apex, 4.5" (115mm) x 3" (75mm); semi-glossy, dark yellowish green (139A) above, hairless; new growth strong yellow green (143A). Shrub 3.2' (1.0m) tall x 2.2' (0.7m) wide in 9 years; intermediate plant habit. Plant hardy to at least -15°F (-26°C); buds, -10°F (-23°C). Early May.
'Whitney's Yak No. 7': Synonym of 'George Munro's Favorite'
* The following unregistered names appear as parents in the above descriptions:
'Phipps Yellow':
H. Phipps hybrid, parentage unknown
'Royston Red':
Greig hybrid, (
thomsonii
x
forrestii
Repens Group) or reverse
'Vossberg No. 2':
Paul Vossberg hybrid, parentage unknown
'Whitney 5736':
W.E. Whitney hybrid, parentage unknown