Oxalis dregei Sond.

A small sometimes minute entirely glabrous lax marsh plant, 3-8 cm high. Bulb ovoid, acute at the apex, 0.6-1 cm long, with very few, easily shed brown papery tunics; bulbils produced on short lateral underground runners on the rhizome. Rhizome slender, wth many lateral rootlets near the apex. Leaves 6-12, unifoliolate, basal or loosely imbricate on a very short stem; petioles 0.5-7 cm long, with membranous alae below the articulation; lamina obreniform-obcordate, rather deeply incised, often conduplicate, thin, 0.4-1.6 cm long, 0.5-2 cm broad. Peduncles 1-fld., 1.5-8 cm long, with two small pale linear alternate bracts near the calyx. Sepals broadly obovate, thin, 2-3 mm long. Corolla campanulate, 0.8-1.5 cm long, white, with a very broad yellow tube: petals cuneate-obovate, obliquely truncate or retuse, the claw very broad and short. Filaments glabrous, the longest 4.5 mm long, well exserted from the corolla tube, with broad prominent teeth. Ovary ovoid, glabrous, the chambers 2-ovuled; styles very sparsely glandular-pilose or glabrous. Seeds without endosperm.