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FOC | Family List | FOC Vol. 17 | Lamiaceae | Leonurus

9. Leonurus glaucescens Bunge in Ledebour, Fl. Altaic. 2: 409. 1830.

灰白益母草 hui bai yi mu cao

Herbs biennial or perennial. Stems erect, 50-100 cm, branched. Petiole of mid stem leaves ca. 1.5 cm; leaf blade circular, ca. 5 cm in diam., palmately 5-partite nearly to base, short strigose, base subtruncate; lobes cuneate to rhombic, pinnately divided into linear to linear-lanceolate segments. Verticillasters 1.5-1.8 cm in diam., numerous; floral leaves with petiole ca. 2 cm, blade rhombic, ca. 4 cm, 3-lobed, base cuneate, lobe margin entire or linear incised; bracteoles spiny, slightly reflexed, appressed pubescent, shorter than calyx tube. Calyx obconical, appressed pubescent, conspicuously veined, tube ca. 4 mm; teeth subulate, spinescent; anterior teeth spreading, 3-3.5 mm; posterior teeth ca. 2.5 mm. Corolla reddish purple, 1-1.2 cm, villous; tube ca. 5 mm, villous annulate inside; upper lip straight, concave, narrowly ovate; lower lip horizontally spreading, narrowly ovate, middle lobe ovate, lateral lobes oblong. Ovary brown, apex truncate, puberulent. Fl. Jul.

Pastures, valleys, thickets; 400-900 m. Nei Mongol [Kazakhstan, Mongolia, Russia].


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