尖叶螺序草 jian ye luo xu cao

Spiradiclis caespitosa Blume f. cylindrica (Wallich ex J. D. Hooker) H. S. Lo.

Herbs, perennial, often prostrate and rooting on basal nodes, at apices ascending; stems densely villosulous. Petiole 0.3-1 cm; leaf blade drying papery, elliptic, narrowly elliptic, or lanceolate-elliptic, 2-8 × 1-4 cm, adaxially scaberulous to glabrescent, abaxially scaberulous, puberulent, or villosulous at least along veins, base obtuse to acute, apex acute; secondary veins 7-9 pairs; stipules caducous, strigillose to puberulent, 2-10 mm, deeply 2-lobed, lobes narrowly triangular to linear. Inflorescences cymose to paniculate, puberulent; peduncle 2-8 cm; principal axes dichasially branched 1 or 2 times, higher order axes scorpioid; bracts linear, 1-5 mm. Flowers subsessile. Calyx glabrous to puberulent; hypanthium portion obconic to oblanceoloid, 1.5-2 mm; limb ca. 1 mm, lobed nearly to base; lobes triangular. Corolla white, shortly tubular, outside glabrous; tube ca. 3.5 mm; lobes ca. 1 mm, smooth dorsally. Capsules linear-oblong to oblanceoloid, 4-4.5 × 1-1.7 mm, valves 4, becoming twisted.

Ravines in forests, rice fields at forest margins; 1200-1500 m. Guangxi, Guizhou, Xizang, Yunnan [Bhutan, Myanmar, N Vietnam].

See comments regarding the circumscription and recognition of this species under Spiradiclis caespitosa.