Rhododendron jiewhoei Argent

Argent, G. (2006) Rhododendrons of subgenus Vireya. p 259

WFO ID: wfo-0000400043

IPNI ID: urn:lsid:ipni.org:names:77073615-1

Verified by:

Description

Shrub to c.50cm. Twigs 4–5mm in diameter, rounded, sparsely scaly and quickly glabrescent. Leaves arranged in a loose spiral. Blade 95–150 x 22–40mm, elliptic to sub-spathulate; apex rounded; margin entire, revolute when dry; base narrowly tapering; glabrescent above, sub-densely and more persistently scaly below. Scales lobed, with a thin, broad marginal flange, and small slightly impressed centre. Mid-vein raised above in the proximal ¼–½; strongly raised below to within 10mm of the apex; lateral veins 6–10 per side, emerging at a wide angle, slender, often somewhat obscure. Petiole 14–18 x c.3mm, not grooved above, laxly scaly initially. Inflorescence of c.20 flowers in a slightly open umbel, the flowers half-hanging. Pedicels 22–30 x c.0.8mm, glabrous, orange. Calyx c.3.5mm in diameter, a low glabrous disc. Corolla c.25 x 20mm, funnel-shaped, dull red outside, pale orange inside, without scent; tube 10 x 3 x 6mm, glabrous outside, densely hairy in the proximal ½ inside; lobes c.11 x 6mm, broadly elliptic to oblong, erect, not overlapping. Stamens to 14mm, exserted to c.4mm, arranged regularly all round the flower, dimorphic; filaments hairy in the proximal 1⁄3, glabrous distally; anthers c.2mm. Disc 10-lobed, glabrous. Ovary 28 x 13mm, glabrous; style c.30mm, glabrous; stigma c.1.6mm in diameter, rounded, only weakly lobed.

Distribution

Malaysia (Borneo), Sabah, Tawau Hills Park, Summit area of Mt Magdalene

Altitude

Habitat

Lower montane forest.

Nomenclatural History

Notes

References

Argent, G. (2006) Rhododendrons of subgenus Vireya. RHS:London. Page:259