Rhododendron erosum Cowan

Species

Angiosperms > Ericales > Ericaceae > Rhododendron

Characteristics

Shrubs or small trees, 4.5–6 m tall; bark grayish brown, flaking; branchlets ca. 4 mm in diam. below inflorescence; young shoots grayish white, densely glandular-hairy. Petiole stout, 7–12(–20) mm, densely brown glandular-setose; leaf blade leathery, broadly elliptic or oblong-elliptic to obovate, 8–10.5(–16.5) × (3–)3.7–4.5(–9) cm; base rounded or shallowly cordate; margin slightly reflexed; apex obtuse or broadly rounded, with small hard point; abaxial surface greenish, yellowish brown floccose-woolly or with gray to yellowish brown wool and glands; adaxial surface markedly bullate, green, brown floccose on base of midrib; midrib raised abaxially, impressed adaxially; lateral veins (10–)15–17-paired, deeply impressed adaxially. Inflorescence umbellate, 12–15-flowered; rachis ca. 15 mm, sparsely yellowish glandular-hairy. Pedicel 0.8–0.9 cm, with long glandular hairs; calyx cup-shaped; lobes 5, 5–5.2 mm, suborbicular, margin glandular-ciliate, ca. 4 mm; corolla tubular-campanulate, deep rose-red, 2.8–3.3 × 3.2–3.8 cm, base with 5 deep red nectar pouches, inner surface of tube white-puberulent; lobes 5, suborbicular, ca. 1.2 cm, apex deeply emarginate; stamens 10, unequal, 1.4–2.3 cm; filaments white, glabrous; anthers obovate, deep brown, ca. 1.3 mm; ovary oblong, ca. 5 mm, densely glandular; style white, ca. 2.1 cm, glabrous; stigma slightly lobed, ca. 1.6 mm wide. Capsule long-cylindric, 15–20 × ca. 6 mm. Fl. Apr–May, fr. Oct.
Life form perennial
Growth form
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 4.5 - 6.0
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 -
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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 -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Images

Rhododendron erosum unspecified picture

Distribution

Rhododendron erosum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:332384-1
WFO ID wfo-0001048739
COL ID 78V45
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Rhododendron erosum