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Project Name Data (Last Modified On 4/4/2013)

Flora Data (Last Modified On 4/4/2013)
Genus Stachys L.
PlaceOfPublication Sp. P1. 580, 1753.
Description Herbs, annual or perennial, rarely half shrubs or shrubs, usually pubescent. Leaves simple, opposite, pinnately-nerved, petiolate or subsessile. Inflorescences verticils, 4-oo flowered, appearing as spikes, the bracts leaf-like or absent. Flowers perfect, subsessile or shortly pedicellate; bracteoles generally apparent; calyx weakly zygomorphic, the teeth subequal and frequently aristate or spinulose-tipped; corolla tubular, exserted or included, purple to pink, the tube frequently con- stricted above the nutlets, sometimes witlh a spur on the lower side, bilabiate, the upper lip subgaleate and 2-lobed, the lower lip 3-lobed, the central lobe largest, sometimes with a pilose annular ring above the nutlets; stamens 4, paired, slightly exserted or inclosed in the upper lip, the filaments distinct, glabrous or pubescent, the connective not developed, the anthers with 2 functional thecae, the thecae strongly divergent or parallel; ovary 4-lobed, the gynobase unlobed or forming a nectarium, the style bifid near the tip, the branches equal and acute. Nutlets ca 4, attached at the base, ? obovate.
Habit Herbs
Distribution Up to 200 species in the North Temperate Zone and extending to South America and South Africa.
Reference Epling, C. C. Preliminary revision of American Stachys. Repert. Spec. Nov. Beih. 80: 1-75, 1934.
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