Rhododendron circinnatum Cowan & Kingdon-ward

Species

Angiosperms > Ericales > Ericaceae > Rhododendron

Characteristics

Shrubs or small trees, 7–8 m tall; branchlets torquate, 7–8 mm in diam.; young shoots densely pale yellow to gray-yellow tomentose. Petiole stout, 20–30 mm, densely grayish tomentose; leaf blade thickly leathery, elliptic-lanceolate to narrowly oblong, 10–14 × 3–4 cm; base obtuse or subrounded; apex obtuse or acute and apiculate; abaxial surface densely, continuously, yellowish brown woolly, hairs crispate-branched; adaxial surface glabrous except in midrib groove which retains vestiges of hairs; midrib and lateral veins prominent abaxially. Inflorescence umbellate, ca. 12-flowered; rachis ca. 10 mm. Pedicel ca. 2 cm, densely floccose and glandular; calyx ca. 1 mm, densely glandular and floccose, margin ciliate-glandular; corolla tubular-campanulate, 2.5–3 cm; lobes 5, ca. 1 × 1 cm; stamens 10, unequal, 1.5–2.5 cm, filaments pubescent at base; ovary ca. 1 × 4 mm, densely long-glandular-hairy and villous at base; style ± equal to corolla, glabrous; stigma discoid. Fl. Jun.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 7.0 - 8.0
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 circinnatum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:332200-1
WFO ID wfo-0001048732
COL ID 4SFNH
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rhododendron circinnatum