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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

Woody herbs or shrubs , often scandent, with simple hairs; leaves toothed, petiolate; inflorescence terminal and/or axillary, thyrsoid, dense; bracts distinct from and much smaller than the leaves, mostly broadly ovate to oblate, often caducous; calyx 5-lobed, lobes subequal or unequal (3/2); corolla weakly 2-lipped, 4-lobed (1/3), reddish to purple to white or sometimes red, posterior lip short, emarginate, scarcely hooded; stamens not or shortly exserted, thecae confluent; stigma-lobes equal or slightly unequal; nutlets with scales in apical half, mostly with sessile glands. 2n = 28, 84, 88. Up to about 25 spp., in moist to mesic forests and by river banks, tropical Africa, Madagascar, Mascarenes, Seychelles, Comores, from Nepal and NE India to S China and Thailand, Indonesia and the Philippines .

Distribution

Native to:

22 West Tropical Africa
23 West-Central Tropical Africa
24 Northeast Tropical Africa
25 East Tropical Africa
26 South Tropical Africa
27 Southern Africa
29 Western Indian Ocean
36 China
40 Indian Subcontinent
41 Indo-China
42 Malesia

Synonyms

Lamprostachys Bojer ex Benth. in A.P.de Candolle, Prodr. 12: 457 (1848).

Siphotoxis Bojer ex Benth. in A.P.de Candolle, Prodr. 12: 457 (1848).

Publication

Achyrospermum Blume, Bijdr.: 840 (1826); Bruce, Bull. Misc. Inform. 1936: 47-60 (1936).

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Species found in RBG Kew living collections

2007-1668 Achyrospermum laterale Baker N NHBGM   WAK_S MGH 1

Image resource

© Royal Botanic Gardens, Kew