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FOC | Family List | FOC Vol. 17 | Lamiaceae

95. Orthosiphon Bentham, Edward's Bot. Reg. 15: t. 1300. 1830.

鸡脚参属 ji jiao shen shu

Plants perennial herbs or subshrubs. Roots often thickened, woody. Leaves dentate. Verticillasters (4-)6-flowered, separate, in long thyrses; bracts shorter than pedicels, circular to oblate, margin entire. Calyx tubular to broadly tubular, tinged with brilliant colors, 2-lipped; upper lip ovate to oblate, scarious, decurrent into tube, margin reflexed; lower lip 4-toothed, teeth awned to needlelike, anterior teeth longer than lateral ones; fruiting calyx enlarged, conspicuously 10-veined. Corolla white or reddish to purple, 2-lipped; tube exserted, straight or incurved, obconical; upper lip 3- or 4-lobed; lower lip entire, concave. Stamens 4, anterior 2 longer, declined, included or slightly exserted; filaments separate, edentate; anthers 1-locellate. Style globose, apex entire or 2-cleft. Disc produced, fingerlike in front. Nutlets ovoid or subglobose, minutely tuberculate, glabrous.

About 45 species: Africa, Asia, Australia; three species in China.

1 Corolla reddish to purple; leaves mostly basal (or on stem and 1-3-paired in var. foliosus)   1 Orthosiphon wulfenioides
+ Corolla white; leaves on stem.   (2)
2 (1) Leaves ovate to broadly ovate, 2-5 × 1.2-3.8 cm, apex subacute, base cuneate to broadly cuneate   2 Orthosiphon marmoritis
+ Leaves oblong-lanceolate, 2-8.5 × 0.5-2.3 cm, apex obtuse to acuminate, base attenuate-cuneate   3 Orthosiphon rubicundus var. hainanensis

Lower Taxa


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