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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

Rhizomatous perennial herbs with simple hairs; upper leaves sessile, lower usually petiolate; inflorescence racemoid, of terminal and subterminal capitate glomerules; flowers sessile; calyx zygomorphic, 3-lobed (1/2), anterior lobes often emarginate (each probably representing 2 fused lobes); corolla 2-lipped, 4-lobed (1/3), white to lavender, posterior lip shallowly hooded, entire, tube exannulate; stamens 4, filaments villous, apically geniculate, anthers bearded on ventral surface, thecae parallel to divergent, not confluent, suture bordered with 5-10 conspicuous teeth, outer thecae of anterior stamens fused; disc with abaxial lobe surpassing ovary; stigma-lobes equal to subequal; nutlets obovoid, longitudinally ridged, glabrous. 2n = 18.  Two spp., wetlands and pine savannas in SE United States.

Distribution

Native to:

78 Southeastern U.S.A.

Publication

Macbridea Elliott ex Nutt., Gen. N. Amer. Pl. 2: 36 (1818).

Image resource

© Royal Botanic Gardens, Kew

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