Vasilis Teodoridis:
Tetracentraceae | Tetracentron
1. Tetracentron sinense Oliver; Hookers Icon. Pl. 19: t. 1892. 1889.
??? shui qing shu
Tetracentron sinense var. himalense H. Hara & Kanai.
Trees to 40 m tall; 1--1.5 m d.b.h; glabrous. Branchlets grayish brown; bud ca. 1 cm. Stipule narrowly oblong; ca. 1 cm. Petiole 2--4 cm; leaf blade broadly ovate; 7--16 x 4--12 cm; papery; abaxially paler; base cordate to rarely truncate rounded; margin serrulate; apex acuminate; palmate veins 5--7. Inflorescences 6--15 cm; short pedunculate; 80--125-flowered but some aborted by anthesis. Floral subtending bracts 0.3--0.5 x 0.4--0.7 mm. Flowers yellowish green; sessile; 1--2 mm in diam. Sepals ovate-orbicular; 1--2 mm; margin entire; apex rounded. Stamens exserted; filaments subterete to slightly flattened; 1.5--3 mm; anthers 0.4--0.8 mm; locules lateral; each theca dehiscent by a lateral slit; connective truncate-rounded at apex. Carpels ca. 1.5 mm at anthesis. Styles at first erect and connivent; becoming recurved at anthesis; subulate; stigma along the ventral surface of the style. Fruit brown; follicles 2.5--5 mm; dehiscence loculicidal; persistent style pointing toward follicle base due to expansion of follicle ventral side. Seeds 4--6 per follicle; spindle-shaped; 2--3 mm; compressed; short winged at each end. Fl. Apr--Jul; fr. Jul--Oct. 2n = 48
Along streams or forest margins in broad-leaved evergreen forests and mixed evergreen-deciduous forests; 1100--3500 m. S Gansu; Guizhou; SW Henan; W Hubei; NW and SW Hunan; S Shaanxi; Sichuan; S and SE Xizang; Yunnan [Bhutan; NE India; N Myanmar; E Nepal; N Vietnam].