A slender erect glabrous herb with ascending branches. Leaves clustered, flat, linear, 4-6 cm long, 2.5-3 mm wide, 3-veined with the side veins close to the margin, the upper leaves sessile, the lower gradually narrowed to a petiole. Umbels at the tips of the branches, with 3 equal rays about 4-5 mm long. Petals glabrous. Fruit longer than wide, parallel-sided, 4-5 mm long, 3 mm wide, flat-topped, much longer than the bracts. Mericarps with distinct ridges and slightly wrinkled furrows. Fruit on an erect ray 0.5-1.5 cm long.
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