Herbs stout. Stem hollow, slightly roughened, little-branched, hispidulous. Basal leaves numerous, very remote. Cauline leaves 2–3-pinnatisect; ultimate segments lanceolate, entire or finely serrate, apex acute, sessile, petioles wholly sheathing, sheaths very broad. Umbels with long peduncles, hispidulous; bracts absent; terminal umbel with rays ca. 25, ca. 4 cm, subequal, pulverous-roughened; bracteoles numerous, narrow-linear, longer than flowers; umbellules ca. 30-flowered, pedicels unequal, ca. 10 mm, roughened. Calyx teeth conspicuous. Developing fruit ellipsoid (mature fruit unknown); dorsal ribs slightly prominent, lateral ribs thinly winged; vittae 1 in each furrow, (2–)2–4 on commissure. Fl. and fr. Jul–Sep.
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