Rhododendron rufum Batalin

Species

Angiosperms > Ericales > Ericaceae > Rhododendron

Characteristics

Shrubs or small trees, 1.5–8 m tall; shoots densely whitish to tawny floccose when young, soon glabrescent. Petiole 15–20 mm, initially with floccose hairs, later glabrescent; leaf blade leathery, elliptic to oblong-ovate, 6.5–11 × 3–5 cm; base subrounded or broadly cuneate; apex obtuse or acute, mucronate; abaxial surface with indumentum 2-layered, upper layer thick, soft, rust-yellow to rufous, woolly-tomentose, hairs branched, lower layer compacted, gray-white; adaxial surface slightly shiny, glabrous. Inflorescence racemose-umbellate, 6–11-flowered; rachis ca. 5 mm, densely rusty brown-pubescent. Pedicel 1–1.5 cm, densely gray floccose; calyx lobes 5, ca. 1 mm, broadly triangular, floccose outside; corolla funnel-campanulate, white to pale pink, with crimson spots on upper lobes, 2–3 cm, puberulent at base inside; lobes 5, slightly unequal; stamens 10, 1.2–2 cm, filaments white-puberulent at base; ovary ca. 4 mm, densely gray-brown woolly-tomentose, sometimes with few glandular hairs at apex; style ca. 2 cm, glabrous or with few hairs at base. Capsule oblong-cylindric, slightly curved, 20–25 × 5–7 mm. Fl. May–Jun, fr. Jul–Sep.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.5 - 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) 7-9

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 rufum unspecified picture

Distribution

Rhododendron rufum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:333270-1
WFO ID wfo-0001229564
COL ID 4SGSD
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Rhododendron rufum Rhododendron weldianum