Rhododendron caesium Hutch.

Species

Angiosperms > Ericales > Ericaceae > Rhododendron

Characteristics

Shrubs, semievergreen, 1–1.5 m tall; young growth sparsely scaly, otherwise glabrous; bud scales deciduous. Petiole 2–6 mm, scaly, setose; leaf blade leathery, oblong, oblong-lanceolate, elliptic to oblong-ovate, 2.5–4(–6) × 1.2–2(3.4) cm; base rounded; margin slightly revolute, long-setose; apex rounded, mucronate; abaxial surface glaucous, scales 2–5 × their own diameter apart, unequal, brown, midrib setose; adaxial surface pale bluish green, glabrous. Inflorescence (1–)2–3(–5)-flowered. Pedicel 1–1.5(–2) cm, scaly; calyx lobes 1–2 mm, rounded to ovate, persistent in fruit, scaly, margin sparsely setose; corolla funnelform-campanulate, yellow or yellowish green, with greenish spots, 1.5–2(–2.5) cm; tube 7–10(–12) mm; outer surface scaly, without hairs; stamens 10, filaments pubescent towards base; ovary scaly; style slender, straight, nearly as long as corolla. Capsule cylindric, ca. 10 mm, densely scaly. Fl. May, fr. Jun.
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 - 1.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-8

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 caesium world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:332075-1
WFO ID wfo-0001230891
COL ID 796RP
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rhododendron caesium