粤港耳草 yue gang er cao

Oldenlandia loganioides (Bentham) Kuntze.

Herbs, erect, perennial, to 30 cm tall; stems terete, weakly angled, or weakly flattened, glabrous. Leaves subsessile to petiolate; petiole 0.5-4 mm, glabrous to puberulent; blade drying papery, elliptic-oblong, lanceolate, or elliptic, 1.5-6 × 1-3.5 cm, glabrous, base acute to cuneate, apex acute to shortly acuminate; secondary veins 3-5 pairs but hardly visible; stipules apparently interpetiolar, ovate-triangular to lanceolate, 2-2.5 mm, puberulent to glabrous, entire to shortly ciliolate, obtuse to rounded. Inflorescences axillary, cymose, 0.8-2 cm, sometimes trichotomous and compact, 10-20-flowered, glabrous; peduncles 2-10(-20) mm; bracts triangular to narrowly triangular, 0.5-3.5 mm; pedicels 1-2 mm. Flowers pedicellate, floral biology unknown. Calyx glabrous; hypanthium portion subglobose to flattened-ovoid, ca. 1 mm; limb lobed nearly to base; lobes linear to narrowly triangular, 1.5-2.2 mm. Corolla outside glabrous. Fruit capsular, ellipsoid to subglobose, ca. 2 × 2-2.3 mm, glabrous, cartilaginous to stiffly papery, smooth, apparently septicidal then loculicidal, beak broadly triangular to conical, up to 0.5 mm; seeds few. Fr. Dec.

● Guangdong.