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Tremacron forrestii

Description from Flora of China

Petiole to 3(-6) cm, densely rust-brown villous; leaf blade narrowly elliptic to ovate or obovate, 3-12(-17) X 2-4(-6) cm, adaxially densely white appressed pubescent and sparsely rust-brown villous, abaxially white rust-brown pubescent, rust-brown villous along veins, base cuneate to attenuate, margin serrate or double serrate to deeply crenate-serrate, apex obtuse to acute. Cymes 4-15-flowered; peduncle 4-20 cm, sparsely brownish villous and glandular puberulent or pubescent; bracts (2-)5-6(-10) X 1-1.7(-4) mm, pubescent. Pedicel 1-2.8 cm. Calyx segments narrowly triangular or narrowly to broadly lanceolate, 2-4 mm, outside sparsely pubescent and villous. Corolla pale yellow to greenish yellow, (5-)8-11 mm; tube subcampanulate, sometimes urceolate, 6-9 X 4-6 mm; adaxial lip ca. 1 mm; abaxial lip lobes semiorbicular, central lobe ca. 2 X 2-3 mm, lateral lobes ca. 1.2 X 2-3 mm. Stamens exserted, 8-11 mm; staminode 1, ca. 2 mm. Pistil 1-1.7 cm, glabrous; ovary 3.5-8 mm. Capsule 2.8-3.8 cm. Fl. Jun-Sep, fr. Aug-Sep.

* Rocks in forests; 2600-4300 m. SW Sichuan, C and NW Yunnan.


 

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