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Subfamily

VI. Subfam. Lamioideae Harley (2003)

Subfam. Stachyoideae (Dumort.) Luerss. (1882); Briq. in Engl. & Prantl (1895) et auct. mult., p.p., typ. incl.

Subfam. Prasioideae (Benth.) Thomé (1889)

Subfam. Pogostemonoideae P.D. Cantino, Harley & Wagstaff in Harley & Reynolds (1992).

Description

Perennial herbs, often with slender rhizomes, pubescent with simple hairs; leaves ovate-acuminate, toothed, long-petiolate; inflorescence thyrsoid, with cymes up to 3-flowered, or racemoid; calyx 2-lipped, 5-lobed (3/2), lobes spiny, unequal, anterior lip longer; corolla strongly 2-lipped, 4-lobed (1/3), pink to dark purple, posterior lip long, hooded; stamens not exserted from corolla, thecae weakly distinct; stigma-lobes subequal; nutlets truncate to rounded, eglandular hairy or glabrous.  About three spp., forest and stream sides, China and Japan.  The only Japanese species L. ambiguus (Makino) Makino, is often placed in Lamium.

Distribution

Native to:

36 China
38 Eastern Asia

Publication

Loxocalyx Hemsl., J. Linn. Soc. Bot. 26: 308 (1890).

Image resource

© Royal Botanic Gardens, Kew

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