Plants, 10–15 cm, short-caulescent or acaulescent. Taproot stout, 1 cm thick or more, branched. Basal leaves only, petiolate; petioles ca. 2 cm, sheathing; blade oblong-lanceolate, 7–10 × 1.5–2 cm, 2–3-pinnate, rachis densely hispid, pinnae 7–9 pairs; ultimate segments linear. Umbels 6–10 cm across, sessile or peduncle very short; rays 13–20, unequal, 8–10 cm, extending after flowering to 20 cm, angular, scabrous; bracteoles 5–8, 5–10 mm, 1–2-pinnate. Calyx teeth lanceolate, ca. 0.3 mm, ca. equaling stylopodium. Petals white, oblong-ovate. Stylopodium conic; styles ca. 2 × stylopodium. Fruit oblong-ovoid, ca. 6 × 4 mm, glabrous; dorsal ribs adjacent; vittae 1 in each furrow, 2 on commissure. Fl. Jun–Jul, fr. Aug–Sep.
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