Description: Acaulescent herb, rhizome globose, to c 2 cm diam. Leaves 1, broad cordate or reniform, 3.5–15 cm wide, 2.7–12.5 cm long; apex broadly obtuse; base deeply to broadly cordate; margin slightly denticulate; blades glabrous on both surfaces, reddish below; basal nerves 7–11; veinlets distinct, loosely; petioles 0.5–6.5 cm long. Inflorescences 1–3, araised from rhizome, scoroioid cyme, sometime bifurcate, scape 6–17 cm long, cyme upto 4 cm long. Flower 4–5-merous, pedicels 0.4–1 cm long; bracts 2, subulate, 1–1.5 mm long. Hypanthium campanulate, ridged, 1–2 mm wide, c 3 mm high. Calyx lobes minute triangular, 0.2–0.3 mm long. Petals ovate, 5–6 mm long. Stamens 8–10; fertile stamens 4–5; filament c 2 mm long; anthers c 1 mm long; sterile ones slightly longer. Ovary 4–5-locular; style c 2 mm long; stima slightly enlarged. Capsules cup-shaped, 2.5–3 mm wide, c. 2 mm high. |
Distribution: Endemic to upper NE Thailand, known only from Phuwua, Buengkan, but expecting to be found in Loas, locally common on sandstone slope-cut near to summit sandstone flat-top mountain, dry evergreen forest, 200–350 m.
Notes: Last updated on 27 December 2016. |