河口长梗茶 he kou chang geng cha

Shrubs or trees, 3-4.5 m tall. Year-old branchlets purplish brown; current year branchlets green, glabrous. Petiole 6-10 mm, glabrous; leaf blade oblong to oblong-lanceolate, 16-25 × 3.5-7 cm, thinly leathery, abaxially pale green and becoming pale brown when dry, adaxially dark green, both surfaces glabrous, midvein raised, secondary veins 13-18 on each side of midvein and raised on both surfaces, reticulate veins slightly raised or obscure on both surfaces, base broadly cuneate to rounded, margin serrulate, apex abruptly shortly caudate to long caudate. Flowers axillary, solitary or to 3 in a cluster. Pedicel 2.5-3.5 cm, slender, glabrous; bracteoles 3, persistent, ovate, ca. l mm, glabrous. Sepals 5, broadly ovate to suborbicular, 3-5 × 3-4 mm, glabrous, margin ciliolate. Petals 7, white, nearly distinct, obovate to obovate-elliptic, 7-10 × 6-7 mm, glabrous. Stamens ca. 7 mm, glabrous; outer filament whorl basally connate for ca. 1 mm. Ovary ovoid, ca. 1.5 mm in diam., densely pale yellow tomentose, 3-loculed; style ca. 5 mm, 3-parted to near base, base pubescent or glabrous. Capsule not seen. Fl. Nov-Dec.

● Forests on hilly slopes or in valleys; 300-500 m. SE Yunnan (Hekou).