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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

Shrub or small tree, densely tomentose with branched and simple hairs; leaves large, subcoriaceous; inflorescence densely thyrsoid with cymes 3-5-flowered; bracts much smaller than leaves, broad, caducous, bracteoles caducous; calyx 5(-7)-lobed, lobes equal or subequal (3/2); corolla weakly 2-lipped, 4-lobed (1/3), white to purple, posterior lip short, scarcely hooded, emarginate, corolla-tube not annulate; stamens long-exserted, anthers wider than long, appearing transversally dehiscent , thecae confluent; stigma-lobes subequal; nutlets cylindric-oblong, truncate, with subsessile glands.  2n = 44.  One sp., L. canum Sm., mostly at forest margins and in secondary forest, from Tibet, Nepal and N India to S China and Vietnam.

Distribution

Native to:

36 China
38 Eastern Asia
40 Indian Subcontinent
41 Indo-China

Publication

Leucosceptrum Sm., Exot. Bot. 2: 113 (1805).

Image resource

© Royal Botanic Gardens, Kew

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