Rhododendron valentinianum Forrest ex Hutch.

Species

Angiosperms > Ericales > Ericaceae > Rhododendron

Characteristics

Shrubs, 0.3–3 m tall; old branches deep gray, glabrous, branches short; young shoots scaly, densely brown-villous. Petiole stout, 3–5(–15) mm, scaly, hispid; leaf blade thick, leathery, oblong-elliptic, 3–4(–10) × 1.5–2(–6.5) cm; base broadly cuneate or bluntly rounded; apex obtuse and rounded or acute, apiculate; abaxial surface scales ca. 0.5 × their own diameter apart or contiguous, brown, midrib ± brown-hispid; adaxial surface sparsely scaly, brown or hispid along center when young; midrib and lateral veins raised abaxially, concave adaxially; lateral veins inconspicuously concave above. Inflorescence terminal, cymose, 2–4-flowered; bractlets present at anthesis, linear-spathulate, longer than pedicel, densely white-pubescent outside. Flowers fragrant. Pedicel 0.5–1.5 cm, scaly, sometimes also strap-shaped-setose; calyx 5-lobed to the base; lobes membranous, 4–8 mm, oblong or oblong-ovate to ovate, persistent in fruit, densely glandular scaly, margin strap-shaped-ciliate or without hairs; corolla funnelform-campanulate, intensely yellow, 2–3.5 cm, densely glandular-scaly and pubescent outside, lobes orbicular; stamens 10, unequal, shorter than corolla; filaments densely villous below, anthers oblong, pale red; ovary 5-locular, densely scaly; style slightly curved, as long as corolla or shorter than stamens, base with a few scales only. Capsule ovoid, 9–15 mm. Fl. Apr–May.
More
A shrub. It grows 1-3 m tall. Young shoots are scaly and brown and old branches are a deep grey. The leaves are oblong and 3-4 cm long by 2 cm wide. They are scaly underneath. The flowers are in groups of 2-4 at the ends of branches. They have a scent. They are funnel shaped and yellow.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 3.0
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

It is a subtropical plant. It grows in mixed forests on dry slopes between 1,800-3,100 m above sea level. In Yunnan.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-10

Usage

Uses gene source
Edible flowers
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 -

Images

Rhododendron valentinianum unspecified picture

Distribution

Rhododendron valentinianum world distribution map, present in China, Myanmar, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:333536-1
WFO ID wfo-0001048053
COL ID 4SH3P
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rhododendron valentinianum Rhododendron valentinianum var. valentinianum