Plants 8–20 cm, perennial, tinged pink throughout. Taproot stout, fusiform, apex woody, forming a thick caudex. Stems very numerous, slender, base without fibrous remnant sheaths. Basal leaves numerous, rosette-caespitose, sessile and clasping; blade narrowly lanceolate, 2–5.5 × 0.2–0.5 cm, 5–11-nerved, acuminate. Cauline leaves reduced upwards. Terminal umbels 4–6 cm across, lax; bracts 5–6, linear, 1.2–3 × 0.5–2 mm; rays 4–7, 3–6 cm, very unequal, slender; bracteoles (5–)6–8, lanceolate or ovate-elliptic, 3–5 × 1–1.7 mm, apiculate; umbellules 4–7 mm across, 14–20-flowered; pedicels 1.2–1.8 mm. Petals yellow, yellow-green, or tinged purple, obovate-elliptic, midvein dark. Stylopodium low-conic, yellow or purplish. Fruit ovoid-oblong, reddish-brown, 1.8–3.2 × 1.8–2 mm; ribs slightly prominent; vittae 1 in each furrow, 2 on commissure. Fl. and fr. Jul–Sep.
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