Rhododendron viscidifolium Davidian

Species

Angiosperms > Ericales > Ericaceae > Rhododendron

Characteristics

Shrubs, 1–2 m tall; older branches pale gray-brown; bark exfoliating into thin and small irregular flakes; young shoots slender, smooth, glabrous. Petiole 12–20 mm, glandular, later smooth; leaf blade leathery, obovate or suborbicular, 4–7 × 3–5 cm; base cordate or suborbicular; apex obtuse, apiculate; abaxial surface glaucous, with scattered viscid glands; adaxial surface deep green, glabrous; midrib prominently raised abaxially, grooved adaxially; lateral veins 12–16-paired, flat on both surfaces, obscure. Inflorescence racemose-umbellate, 1-or 2-flowered; rachis 1–3 mm, puberulent or glabrous. Pedicel ca. 1 cm, glandular-hairy; calyx pale green to pink, cupular; lobes 5, 5–7 mm, ovate or rounded, glabrous, fringed with stalked glands; corolla tubular-campanulate, fleshy, coppery-red or pink, with dark flecks, 3.5–4 cm, nectar pouches present; lobes 5, ca. 1.5 × 2.5 cm, emarginate; stamens 10, unequal, 1.5–3 cm, filaments glabrous; ovary cylindric, ca. 6 × 3 mm, densely tomentose and shortly glandular-hairy; style 2.5–3 cm, glabrous; stigma slightly swollen. Capsule cylindric, ca. 20 × 9 mm, tomentose, base enclosed by persistent calyx. Fl. May.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0 - 2.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 50 - 90
Germination temperacture (C°) 12 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Rhododendron viscidifolium world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:333575-1
WFO ID wfo-0001229703
COL ID 4SH4S
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rhododendron viscidifolium