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FOC | Family List | FOC Vol. 14 | Apiaceae | Pleurospermum

21. Pleurospermum decurrens Franchet, Bull. Soc. Philom. Paris, sér. 8. 6: 138. 1894.

异叶棱子芹 yi ye leng zi qin

Hymenidium decurrens (Franchet) Pimenov & Kljuykov.

Plants 40–100 cm high. Root dark brown, 7–10 cm across. Stem slender, 4–7 mm thick at base, ribbed. Basal and lower petioles 10–30 cm; sheaths oblong, membranous; blades broad-ovate, 5–12 cm, 2-ternate/pinnate, hirtellous along the main veins on both surfaces, otherwise glabrous; ultimate segments oblong-ovate, 1–3 × 0.8–2 cm, base cuneate-decurrent, pinnately incised distally. Stem leaves gradually reduced upwards. Umbels 6–10(–18) cm across; peduncles 5–13 cm; bracts 6–10, pale green, oblong-lanceolate, 1.2–2.2 × 0.4–1.2 cm, less than half length of rays, margin white membranous, apex acute or 3-lobed; rays 10–15(–20), 2–4.5 cm, scabrous; bracteoles 6–8, 7–15 mm, equal to flowers, linear-lanceolate, entire or occasionally 3-lobed; pedicels numerous. Calyx teeth obsolete. Petals ovate-lanceolate, white, ca. 2 mm. Anthers violet, filaments white. Stylopodium conic, cream. Fruit ovoid, 4–8 × 2.5–3.3 mm; ribs narrowly sinuolate-winged; vittae 1 in each furrow, 2 on commissure. Fl. Jul–Aug, fr. Aug–Sep.

Shady areas in Pinus and mixed forests, alpine grasslands; 3000–4000 m. NW Yunnan.


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