Rhododendron agastum Balfour f. & W.W.Sm.

Trans. Bot. Soc. Edinb. 27:178 (1917).

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IPNI ID:

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Description

Shrub, 1.5—3m. Leaves coriaceous, obovate to elliptic, 6-11 x 2.5-5cm, 2.2-2.5 x as long as broad, apex rounded, acuminate, base rounded, margin not undulate, upper surface glabrous, lower surface with a thin veil of dendroid hairs embedded in a surface film, with numerous red punctate hair-bases overlying the veins; petioles 1.5—2cm, glabrous. Inflorescence 10-15-flowered; rhachis at most 5mm; pedicels 15—20mm, stipitate-glandular. Calyx 2—3mm, lobes rounded, glandular. Corolla campanulate to tubular-campanulate, with nectar pouches, glabrous within, rose-pink, usually with darker margins and at least a few crimson flecks, 40—50mm. Ovary stipitate-glandular, with a few rufous dendroid hairs; style glandular, usually almost to tip. Capsule up to c.30 X 9mm, curved.

Distribution

China(W Yunnan)

Altitude

Habitat

Rhododendron thickets, open pine forests, stony slopes

Nomenclatural History

Notes

References

Chamberlain, D.F. (1982) A Revision of Rhododendron II. Subgenus Hymenanthes. Notes From the Royal Botanic Garden Edinburgh 39(2):301