Corchorus longipedunculatus Mast.

Annual herb up to 0.6 m tall, branching low down with many ascending, slender stems; branchlets angular or compressed at first, glabrous. Leaf-blade 10-80 x 2-3.5 mm, linear, acuminate at the apex, cuneate or narrowly truncate at the base, margin denticulate, glabrous or minutely setulose-pubescent on the midrib below; petiole up to 5 mm long, very shortly pubescent on the upper side; stipules 5-7 mm long, setaceous, glabrous. Inflorescence of 1-3-flowered cymes opposite the upper leaves; peduncles up to 20 mm long, hairlike, glabrous; pedicels similar, up to 10 mm long; bracts 2-3 mm long, setaceous, glabrous. Sepals about 4 mm long, very narrowly elliptic to linear, caudate or setaceous at the apex, glabrous, margins somewhat inrolled. Petals yellow, 3-4 mm long, linear to very narrowly oblanceolate, not clawed or cilate at the base. Androgynophore and annulus almost or quite obsolete. Stamens about 12, filamentous. Ovary trigonously subcylindric, 3-locular, very minutely setulose-pubescent; style 1-1.5 mm long, glabrous. Capsule 20-50 mm long, many-seeded, trigonous, with an undivided beak, narrowed to the base, glabrous, 3-valved, valves hollowed out to receive the seeds within; seeds brown, about 0.8 x 1.5 mm, subcylindric.