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

4. Leonurus villosissimus C. Y. Wu & H. W. Li, Fl. Reipubl. Popularis Sin. 65(2): 601. 1977.

柔毛益母草 rou mao yi mu cao

Herbs annual. Stem erect, ca. 60 cm, solitary, striate, densely yellowish villous, much branched apically. Petiole of mid stem leaves 1-3.5 cm; leaf blade triangular-ovate, 5-6.5 × 5-5.5 cm, papery, densely yellowish villous, 3-lobed, base broadly cuneate, margin coarsely serrate-dentate, apex acute; middle lobe rhombic-oblong, ca. 4 × 2.5 cm, lateral lobes oblong, ca. 1.5 cm wide; upper leaves with petiole less than 5 mm, blade circular-ovate or ovate to subcircular, margin coarsely serrate-dentate, entire, or 3-lobed. Verticillasters many flowered; bracteoles spiny, straight, 5-6 mm. Flowers sessile. Calyx tubular, 0.8-1.2 cm, densely yellowish villous, golden glandular; tube 5-7 mm, slightly constricted at mouth, obscurely veined; teeth 3-5 mm, straight, broadly triangular-subulate, apex abruptly acuminate-spinescent, anterior teeth larger. Corolla 1.5-2.1 cm, densely gray-white sericeous-villous, scaly annulate inside, sparsely scaly-puberulent on posterior part of tube; tube 6-7 mm, gradually dilated to 3 mm in diam. at throat; upper lip oblong, spreading, ca. 9 × 4 mm, emarginate; lower lip ovate, ca. 7 × 5 mm, middle lobe obcordate, lateral lobes ovate. Filaments puberulent basally. Ovary brown, glabrous. Nutlets unknown. Fl. Aug.

* Sunny slopes; ca. 500 m. Hebei (Yi Xian).


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