Peucedanum guvenianum

Peucedanum guvenianum

Eferezenesi

Polycarpic perennials with taproot; taproot 25–45 mm in diameter; fibrous collar present. Stems 130–220 cm tall, 6–13 mm diameter at base, completely glabrous, striate, rounded at cross-section in lower part, from the middle and upper part dichotomously branched. Leaves mostly basal, with the remains of old leaf bases. Basal leaves rosulate, outer soon withering but not falling off, with sheaths 1–6 cm long and petioles 6–20 cm long, leaf blade 28–40 × 20–70 cm; flabellate in outline; lamina 4–6 ternate; their segments with long petiolules; terminal lobes 2.5–10 cm long, 1–2 mm wide, linear. Middle and upper cauline leaves acropetally decreasing in size, their sheaths triangular, blades very reduced, almost without blades at uppermost leaf. All umbels with peduncles, 4–19 cm long, 7–16-rayed; rays unequal, 15–65 mm long, glabrous; finely furrowed; bracts 2–4, linear to linear-lanceolate, entire, 3–7 mm long, herbaceous, caducous in fruiting time. Umbellules 8–19-flowered; pedicels at flowering 1–5 mm long, pedicel at fruiting 3–8 mm long; bracteoles 7–9, linear to linear-lanceolate, entire, 1–3 mm long, herbaceous, inflexed. Sepals up to 0.5 mm, triangular, with whitish acuminate tip. Petals bright yellow, glabrous, 1–1.5 × 1 mm long, obovate, cuneate at the base, emarginate at the tip, strongly incurved at apex, attached to petal blade. Filaments 2–2.5 mm long, anthers ±oblong, 0.5–0.75 mm long. Stylopodium shortly conical, styles up to 1 mm long, reflexed. Mericarps oblong to oblong-elliptic, 7.2–14 × 4.3–8 mm, compressed dorsally; brown when ripe; dorsal ridges  inconspicuous, filiform, lateral wings 0.8–1.2 mm wide, stylopodium shortly conical, styles up to 1 mm long, reflexed, dorsal vittae 1 per vallecula, commissural 2.

Endemic.

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