Basilicum polystachyon

小冠薰

Basilicum polystachyon (L.) Moench.

名彙資訊

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Moench., Supplementum ad Methodum Plantas : a staminum situ describendi 143. 1802. (Suppl. Meth.)

Moschosma polystachyum (L.) Benth.

Yamamoto, Journal of the Society of Tropical Agriculture 6(3): 557. 1934. (J. Soc. Trop. Agr., 熱帶農學會誌)

Tsung-Hsin Hsieh, Endemic Species Research 9(1): 75-80. 2007. (Endem. Sp. Res., 特有生物研究)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)

herb

Herbs, glabrous or covered with septate hairs on some parts, 50–100 cm tall; stems square, glabrous or puberulent at nodes.
Leaves petiolate; petioles glabrous or very sparsely minutely hairy, 1.5–3.5 cm long; blades lanceolate to triangular-ovate, 3–7 cm long, 1.2–3 cm wide, base cuneate, apex acuminate, margins serrate, both surfaces glabrous, veinlets prominent on lower surface, 4 or 5 paired.
Inflorescences of verticillate cymes, forming axillary or terminal racemes or panicles, axils minutely hairy, bracteoles minute, ovate or triangular, acuminate, shorter than the pedicel; calyx ovoid-tubular, 5-toothed, bilabiate, upper lip 3-lobed, middle lobe larger, broadly ovate, obtuse, lower lip 2-toothed, teeth linear to narrowly triangular; corolla tubular, tube glabrous, limb bilabiate, minutely hairy, upper lip 3-lobed, central lobe ovate, larger than lateral lobes, lower lip ovate, undulate; stamens 4, didynamous, declined; anthers 2-celled; stigma bifid.
Nutlets short-ellipsoid, ca. 0.7 mm long, smooth, rounded at top, slightly compressed.