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24. Leonurus L., Sp. Pl. 1753. L., Gen. Pl. 254. 1754; Benth. in DC., Prodr. 12: 499. 1848; Boiss., Fl. Or. 4: 752. 1879; Hook. f., Fl. Brit. Ind. 4: 677. 1885; Briquet in Engler & Prantl, Nat. Pflanzenfam. ed. 1, 4, 3A: 256. 1896; Mukerjee in Rec. Bot. Surv. Ind. 14, 1: 192. 1940; Kuprianova in Komarov, Fl. URSS 21: 150. 1954; Wealth of India, Raw Materials 6: 67. 1962; Rech. f. in Fl. Iran. 150: 334. 1982; Krestovskaya in Bot. Zhurn. 73, 12: 1744-1755 (1988) [In Russian].
I.C. Hedge
Leafy erect perennial herbs. Stems simple or branched, glabrous or pilose. Leaves lobed or deeply laciniate, petiolate. Verticillasters many-flowered in upper leaf axils, remote or crowded into a spike-like inflorescence. Bracts subulate. Calyx turbinate, indistinctly bilabiate, 5-nerved; teeth 5, ± equal, spiny, spreading to reflexed. Corolla bilabiate, exserted; tube glabrous within or annulate; upper lip scarcely falcate; lower lip spreading or reflexed 3-lobed. Stamens 4, included, in two pairs; thecae 2-locular. Style equally bifid. Nutlets smooth, sharply triquetrous, clearly flat truncate at apex.
About 12 species throughout Europe and Asia; adventive elsewhere.
Lower Taxa
Related Synonym(s):
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