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.
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