Volume 13 > Part 2 > Year 2016 > Page 318 > Compositae (Asteraceae) > Gynura

5. Gynura hmopaengensis H.Koyamawfo-0000005100

Acta Phytotax. Geobot. 39: 152. 1988. Fig. 57.

Accepted Name : This is currently accepted.

Description : Erect herb, to 1.2 m tall, hoary pubescent; stems striate, simple, branched above, branches ending in inflorescences. Leaves cauline; median leaves petiolate; blade oblanceolate to ovate-oblong, ca 16 by 4 cm, apex acute or acuminate, base narrowed to petiole, margins irregularly serrulate, both surfaces densely short curly hairy; petioles ca 3 cm long; leaves of lower part caducous. Inflorescences in loose corymbiform arrangement with many capitula; peduncles to ca 3 cm long. Capitula: involucres tubular, 10–12 by 10–15 mm; calyculate, calycular bracts linear, 2–8 mm long; phyllaries ca 13, uniseriate, linear, ca 3 mm wide, apex acuminate; receptacle naked. Florets ca 60 per capitulum; corollas orange, ca 13 mm long, apex 5-lobed, lobes lanceolate, 1 mm long, basal tube 9.5 mm; style arms flattened, with introrsely marginal stigmatic lines and an elongate slender, hispidulous appendage. Achenes (immature) striate, glabrous; pappus of capillary bristles ca 10 mm long, caducous, snow-white.

Thailand : NORTHERN: Mae Hong Son (Mo Paeng Falls – type: Koyama et al. T-32536, holotype -KYO).

Distribution : Endemic.

Ecology : On rocks near waterfall in semi-shade, ca 850 m alt. Flowering: January.