Rhododendron ririei Hemsl. & E.H.Wilson

Species

Angiosperms > Ericales > Ericaceae > Rhododendron

Characteristics

Shrubs or small trees, 3–8 m tall; bark pale gray, exfoliating into thin and small irregular flakes; young shoots stout, pale green, glabrous. Petiole stout, 10–20 mm, glabrous; leaf blade oblong-elliptic to obovate-elliptic, 7.5–13 × 2.5–4 cm; base broadly cuneate or rounded; apex cuspidate and mucronate; abaxial surface indumentum silvery white, thin; adaxial surface dark green, glabrous, midrib prominent abaxially, impressed adaxially; lateral veins 13–14-paired, prominent abaxially. Inflorescence racemose-umbellate, 5–10-flowered; rachis 5–8 mm, whitish pilose. Pedicel 1–1.5 cm, with a white tomentum; calyx lobes 5, small, unequally triangular, sparsely pubescent; corolla campanulate, broad at base, purple-red, 4–6 cm, with 5 black-purple nectar pouches at the base of tube, lobes 5, orbicular, emarginate; stamens 10, subincluded in the corolla, 2.5–5.5 cm, filaments glabrous; ovary cylindric or conoid, 5–8 mm, 10-locular, densely gray felted-tomentose; style 3–3.5 cm, glabrous. Capsule oblong-cylindric, 2–3 × 9–12 mm, grayish tomentose when young, glabrescent. Fl. Mar–May, fr. Jul–Aug.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 3.0 - 8.0
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 -

Images

Rhododendron ririei unspecified picture

Distribution

Rhododendron ririei world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:333236-1
WFO ID wfo-0001219286
COL ID 4SGR8
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rhododendron ririei