Prangos abieticola

Perennial herb. Stem erect, 40–50 cm long, loosely covered with short curly hairs below and above, with a well-developed fibrous collar 5–10 cm long and 1–2 cm in diameter at base. Basal leaves oblong to elliptic in outline, 35–50 × 20–35 cm , petiole with 5–7 cm long sheath, sheaths 40–50 × 10–15 mm, slightly inflated; lamina 4–6-pinnate; ultimate segments linear-oblong, 5–7 × 0.5–0.7 mm, apiculate, sparsely curly hairy; rachis glabrous; lower cauline leaves oblong to elliptic in outline, 25–40 × 15–20 cm , lamina 4–5-pinnate; middle and upper cauline leaves similar to lower leaves; ultimate segments longer than basal. Branches opposite, leaves at base of lateral branches similar to cauline leaves, but smaller and 3–4-pinnate. Flowers hermaphrodite, central umbels shortly pedunculate, 1–1.5 cm long in fruit or sessile, rays 8–12, 4–10 cm long when ripe; lateral umbels with 2–5 rays at most, sterile. Bracts linear-lanceolate, 7–12 mm, usually 5, often caducous; bracteoles linear-lanceolate, 5–8 mm, usually 5, often caducous. Umbellules 5–10-flowered, when ripe 3–6. Pedicels 5–15 mm, always shorter than mature fruit. Sepals obsolete. Petals yellow, 1–2 mm, glabrous, with deflexed apex. Stylopodium slightly angular-terete longitudinally, with undulate margin, mericarps always well developed. Mature fruit compressed dorsally, oblong to ellipsoid, 20–25 × 10–15 mm; wings undulate, about 3 mm wide. Seeds brownish, oblong, 12.37 × 3.45 mm with reticulate ornamentation.

Phenology. Flowering: June–July; fruiting: July–August.