Description from Flora of China
Stems to more than 40 cm, simple, glabrescent proximally, puberulent distally with hooked hairs. Leaves with petiole 1--1.5 cm; leaf blade narrowly elliptic, 11--18 × ca. 3.5 cm, adaxially scabrid with prickly hairs along veins. Panicle solitary, terminal, 10--12 × 2.5--3.6 cm, densely puberulent; peduncle 4--5 cm; pedicels ca. 7 mm in fruit. Median sepal strongly hooded at apex; lateral ones not or slightly hooded. Petals blue or purplish. Fertile stamens 3; filaments glabrous; antherodes 2-lobed. Capsule ovoid-globose, ca. 3 mm. Seeds gray-brown, hemispheric, ca. 2.5 mm, reticulate. Fr. Nov.
Floscopa yunnanensis differs from other members of the genus as follows: inflorescence with hooked (vs. glandular) hairs; bracts cupular; fertile stamens 3; staminodes 3, 2-lobed; seeds large. Based on these characters, Faden (Doctoral Dissertation, Washington University, St. Louis, 1975) observed that this species probably belongs to another genus. Wu Zhengyi (editor’s note) believes that it may belong to Rhopalephora.
* Dense forests; ca. 800 m. S Yunnan (Xishuangbanna Dai Zu Zizhizhou).