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Chinese Plant Names | Family List | Lamiaceae | Leucas

Leucas mollissima Wall.


Description from Flora of China

Herbs erect, 0.5-1.5 m tall. Stems slender, twisted, appressed tomentose-villous, much branched; internodes long. Petiole to 1 cm, densely tomentose; leaf blade ovate, 1.5-4 × 1-2.3 cm, gradually reduced at apex, densely villous-tomentose, corrugate adaxially, greenish white abaxially, base broadly cuneate to cordate, margin crenate-serrate, apex acute. Verticillasters axillary, widely spaced, 2-8(-10)-flowered. Calyx tubular, ca. 6 mm, truncate at mouth, densely pubescent outside, posterior part puberulent, anterior glabrous inside; veins conspicuous, villous; teeth 10, triangular-subulate, subequal, ca. 1 mm. Corolla white, yellowish, or reddish, ca. 1.3 cm, tube ca. 7 mm, puberulent near throat outside, obliquely villous-annulate on middle inside; lower lip spreading, ca. 1.5 × as long as upper lip; middle lobe largest, obcordate; lateral lobes oblong, pilose at base outside, glabrous inside. Nutlets dark brown, ovoid, triquetrous. Fl. May-Oct, fr. Oct-Nov.

Keng (Fl. Males. 8: 340. 1978) includes this species in Leucas flaccida R. Brown.

Roadsides, grasslands, streamsides, sunny thickets, evergreen forests; 0-2700 m. Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Sichuan, Taiwan, Yunnan [India, Indonesia, Japan, Malaysia, Myanmar, Nepal, Sri Lanka, Thailand, Vietnam]


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