Rhododendron tanastylum
Rhododendron tanastylum var. tanastylum
R. tanastylum var. tanastylum (fra Hirsutum). Foto: Allan Gregg
R. tanastylum THG2899 i Bremen's Rhododendronpark. Foto: Hans Eiberg
R. tanastylum var. vietnamense at Tregrahan Con. Foto: Ken Cox
R. tanastylum THG2899 i Bremen's Rhododendronpark. Bark. Foto: Hans Eiberg
1975/073 Wakehurst (+5). An English form of an obscure species with faint indumentum and light crimson flowers.
Tue Jørgensen og Hans Eiberg.
Flora of China
RBGE Herbarium; R. tanastylum
RBGE Herbarium; ombrochares
RBGE Herbarium; cerochitum
Flora of China
Small trees or shrubs, 2–6 m tall; older shoots glabrous; young shoots glabrescent. Petiole stout, terete, 10–15 mm, glabrous;
leaf blade leathery, sometimes thinly so, ovate-lanceolate to elliptic, 6–17 × 2.5–5.5 cm; base rounded or broadly cuneate;
margin not undulate; apex acuminate or obtuse; both surfaces glabrous; abaxial surface paler; adaxial surface matt at maturity;
midrib raised; lateral veins 17–20-paired. Inflorescence racemose-umbellate, 4–8-flowered; rachis 10–20 mm, glabrous. Pedicel ca. 1 cm;
calyx cupular, lobes 5, 1–3 mm, ovate or triangular, glabrous; corolla tubular campanulate, fleshy, white or pink to deep crimson,
with darker spots, 4–4.5 cm, 5 black nectar pouches at base; lobes 5, orbicular, 2–2.5 cm, emarginate; stamens 10, unequal, 2–3.5 cm,
filaments glabrous or puberulent at base; ovary conical, 5–8 × ca. 3 mm, glabrous or slightly pubescent; style stout, 3–3.5 cm, glabrous,
stigma discoid. Capsule oblong, blunt, ca. 17 × 7 mm, glabrous. Fl. Mar–May, fr. Sep–Nov.
Evergreen broad-leaved forests, Pinus forests, thickets, valleys; 1700–3700 m. E Xizang, W Yunnan [NE India, NE Myanmar].
R. tanastylum var. pennivenium