Rhododenderon leptocladon

Billeder af Rhododenderon leptocladon

Beskrivelse

R. leptocladon (Maddenia). Nyintroduceret art. Opret og relativ kompakt vækst. Speciel art med store citrongule blomster som bleger med alderen. En introduktion fra Keith Rushforth som indsamlede frø (KR#2932) i Lao Cai provinsen i Vietnam. Vildtvoksende i S. Yunnan, Dulong Valey og N. Vietnam ved 1800-3000 m. Ikke hårdfør i Danmark.
Hans Eiberg

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Ikke i ARS og Flora of China
RBGE Herbarium; R. leptocladon (only text)

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Shrubs, epiphytic, 0.5–1 m tall; young shoots densely brown-scaly, otherwise glabrous. Petiole 5–7 mm, densely brown-scaly, glabrous; leaf blade leathery, elliptic, oblong-elliptic or ovate, 4–6(–8) × 2–3.5 cm; base cuneate to rounded; apex acute, apiculate; abaxial surface gray green, scales contiguous, or less than their own diameter apart, unequal, brown, without hairs; adaxial surface green, glabrous; midrib raised abaxially, concave adaxially; lateral veins 6-paired, slightly concave above and raised below, or inconspicuous on both surfaces. Inflorescence terminal, umbellate, 3- or 4-flowered. Pedicel stout, 0.3–0.4 cm, densely scaly; calyx 5-lobed; lobes 1–2 mm, ovate, apex rounded, densely scaly abaxially; corolla broadly funnelform, lobed to the middle, yellow, 3.5–4.3 cm, outer surface sparsely scaly, tube gray-white-pubescent, lobes 5, ovate; stamens 10, unequal, shorter than corolla; filaments densely spreading pubescent at base, anthers brown, ca. 5 mm; ovary densely scaly; style slightly longer than corolla, basal part scaly. Capsule ovoid-cylindric, 5-lobed, ca. 11 mm, densely scaly.