泰北粗叶木 tai bei cu ye mu

Lasianthus kerrii Craib.

Shrubs, 1-1.5 m tall; branches and branchlets densely tomentose to strigose. Petiole 4-9 mm, tomentose or strigose; leaf blade papery or rigid-papery, oblanceolate, elliptic-oblanceolate, or oblong, 5-10 × 2-4 cm, glabrous adaxially, tomentose or strigillose on midrib, nerves, and nervules abaxially, base cuneate, obtuse, or rounded, apex shortly acuminate or acute; lateral veins 5-7 pairs; nervules subreticulate; nerves and nervules elevated conspicuously abaxially; stipules subulate-triangular, 2-3 mm, tomentose or strigose. Inflorescence glomerulate, sessile; bracts subulate, 4-6 mm, tomentose or strigose. Flowers sessile. Calyx tomentose or strigose; hypanthium portion obconic, 1-1.5 mm; limb deeply lobed; lobes 4, triangular-subulate to lanceolate, 1.5-2 mm. Corolla ca. 9 mm; tube ca. 7 mm, sparsely strigillose outside; lobes 4, ca. 2 mm. Fruit blue, subglobose, 4-5 mm in diam., tomentose or strigillose; pyrenes 4.

Montane forests, shaded and wet places; 1000-1200 m. S Yunnan [N Thailand].

H. Zhu (Syst. & Geogr. Pl. 72: 79. 2002) noted that this species is rare and very similar to Lasianthus sikkimensis.