Rhododendron triumphans Yersin & A.Chev.

Rév. de Bot. Appl. et d’Agric. Trop. 1929. 9(92): 256, t.11.

WFO ID: wfo-0000405645

IPNI ID: urn:lsid:ipni.org:names:333509-1

Verified by:

Description

Shrub to 2m. Twigs 4–5mm in diameter, rounded, laxly scaly but quickly glabrescent. Leaves spirally arranged. Blade 140–190 x 55–80mm, elliptic; apex acute to obtuse, sometimes shortly acuminate; margin entire, flat; base tapering, broadly tapering to rounded; sparsely scaly and quickly glabrescent above, densely or sub-densely scaly beneath. Scales sub-stellate with a broad thin marginal zone and small slightly impressed centre. Mid-vein broadly raised above in the proximal 1⁄3 becoming impressed distally; strongly raised beneath throughout although becoming more slender distally; lateral veins 10–14 per side, very slightly raised on both sides when dry. Petiole 18–26 x 2–3mm, not grooved above, laxly scaly. Inflorescence 5–9 flowers in an umbel, red, without scent. Pedicels 38–42 x c.1mm, scaly without hairs. Calyx c.4–5mm in diameter, a low disc, glabrous. Corolla 70–80 x 60–80mm, funnel-shaped; tube 30–40 x 5–7 x 20–27mm, glabrous outside and inside; lobes 40–45 x 32–38mm, obovate, glabrous. Stamens c.40mm; filaments red; anthers up to 5mm, purple, oblong. Ovary c.10 x 4mm, cylindrical or slightly angled, hairy; style to 30mm, slender, glabrous, pink; stigma disc-shaped. Fruit fusiform, angled.

Distribution

Vietnam, Khanh Hoa, Massif du Honba.

Altitude

Habitat

Epiphytic on trees or on peat on blocks of granite.

Nomenclatural History

Notes

References

Argent, G. (2006) Rhododendrons of subgenus Vireya. RHS:London. Page:240