生活型

herb

形態特徵

• Perennial herbs, prostrate; stems up to 60 cm long, compressed-terete, 1–2 mm across, whitish yellow, glabrous to puberulent, woody toward the base.
• Leaves somewhat fleshy, opposite, in unequal pairs; blades oblong, oblong-lanceolate or narrowly lanceolate, (0.8–1.2)1.5–2.5 cm long, (0.3–0.5)0.4–0.8 cm wide, acuminate acute to obtuse at the apex, obtuse to truncate at the base, margins strongly crispate, sparsely hispidulous, white and cartilaginous, upper surfaces green or pale green, glabrous to finely puberulent, lower surfaces grayish white, glandular-dotted, pubescence on veins; petioles up to 0.8 cm long, pale, puberulent.
• Inflorescences of pedunculate umbel, axillary, or a small terminal panicle, the peduncles 0.5–2 cm long, simple or 2-branched, capillary at apex, pale yellow, glabrous or subglabrous, each branch of peduncle subtended by a bract, bracts linear-lanceolate, 1 mm long, puberulent, caduceus. Flowers 1 or rarely 2 at the apex of peduncle, sessile; bracteoles usually 2, subtending a flower, in an unequal pair, linear or linear-lanceolate, 0.8–1 mm long, 0.2–0.3 mm wide, the larger below, liner-lanceolate, 1 mm long and 0.3 mm wide, all those pale yellow, puberulent; perianth constricted below the middle, the limb widely campanulate, 2–3 mm long, 4 mm across, white, shallowly 5-lobed, the lobes 1–1.2 mm wide, emarginated, with protuberance bearing hairs on the sinus, sparsely puberulent and glandular on the abaxial surface; stamens 2–3, filaments 2 mm long, anthers dithecal, orbicular, 0.5 mm across; style 1.5 mm long; stigma capitate.
• Anthocarps obovoid or narrowly clavate, 4–5 mm long and 2 mm wide, rounded at apex, 5-ribbed, the ribs yellowish green, densely stipitate glandular, the furrows whitish, densely pubescent.

物候

Flowering and fruiting are throughout the year.

分布

• 台灣 : growing in sandy soils along the east coast of Taiwan.

引證標本

HUALIEN: Chi-hsin-tan, Chen 2004a (Holotype: NHU; isotypes: TAI, HAST); Lingting, Chian, Huang, Yang & Hu 5237 (TAI).

參考文獻

• Shih-Huei Chen and Ming-Jou Wu, Taiwania 52(4): 332-342. 2007.