Rhododendron ungernii Trautvetter

Gartenflora 335 (1885).

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IPNI ID:

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Description

Shrub or small tree, 1—7m; young shoots densely whitish lanate-tomentose, with scattered stipitate glands. Leaves oblanceolate to obovate, 11.5-21 x 3.5-6.2cm, 2.5-3.3 x as long as broad, apex usually rounded, acuminate, base cuneate to rounded, upper surface glabrous, lower surface densely whitish to fawn lanate-tomentose; petioles 1.5—2.5cm, lanate-tomentose and stipitate-glandular at first, later glabrescent. Inflorescence lax, 12-25-flowered; rhachis 25-35(-60)mm; pedicels with a persistent floccose lanate indumentum and persistent glands, 25-35mm in flower, up to 60mm in fruit. Calyx 5-9mm, lobes lanceolate, acute, stipitate-glandular. Corolla funnel-campanulate, white, sometimes flushed pink, with greenish flecks, c.35mm. Ovary brownish stipitate-glandular, with scattered whitish non-glandular hairs. Capsule 12-15 x 4-6mm.

Distribution

NE Turkey & adjacent USSR (Georgia)

Altitude

Habitat

Picea forests

Nomenclatural History

Notes

References

Chamberlain, D.F. (1982) A Revision of Rhododendron II. Subgenus Hymenanthes. Notes From the Royal Botanic Garden Edinburgh 39(2):311