Crepis subscaposa

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Crepis subscaposa

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Description

Herbs 30–50 cm tall, perennial, rosulate. Taproot woody. Caudex woody, with rather sparse leaf rosette and 1–3 stems. Stems erect, apically sparsely branched and white pubescent, almost leafless. Rosette leaves oblanceolate to elliptic, 5–10 × 2–3 cm, both surfaces pubescent with short glandular hairs, base attenuate into a short winged petiole-like portion, margin denticulate and irregularly sinuate to dentate, apex obtuse to acute. Stem leaves (if present) few, remote, bractlike, narrowly lanceolate, apex acute. Synflorescence laxly corymbose, with few to some capitula. Capitula with 20–30 florets; peduncle wiry, 1–4 cm. Involucre broadly cylindric to narrowly campanulate, 7–10 × 4–6 mm. Phyllaries sparsely pubescent with white partly glandular hairs; outer phyllaries lanceolate to linear-lanceolate, longest ca. 1/2 as long as inner ones, apex acute; inner phyllaries with short blackish rigid subulate hairs on midvein, adaxially glabrous, apex obtuse. Achene dark brown, fusiform, 5–6.5 mm, with 10–12 echinulate ribs, apically strongly attenuate. Pappus white or pale yellowish, 4–5 mm. Fl. and fr. Jul–Aug.

from: Shih C. & Kilian N. in Wu Z. Y. & al. (ed.), Flora of China 20–21: 250–251. 2011, Beijing & St Louis.


Herb, perennial, 20-40-(60) cm high. Caudex c. 5.0 cm, 5.0 cm wide, branched with 1-3 stems. Flowering stems erect, terete, medullary, sparsely tomentose, more or less glabrescent or pubescent and glandular, striate, weakly branched. Rosette leaves narrowly obovate to elliptic, 5.0-9.0 cm long, 1.8-3.0 cm wide, irregularly denticulate, obtuse or acute, petiole-like attenuate with a winged petiole, densely pubescent and glandular. Cauline leaves linear, acuminate, sometimes reduced to scales. Peduncle 0.3-4.0 cm long, scabridulous or sparsely tomentose, densely pubescent and glandular, covered with bracts. Heads with many flowers. Involucre at flowering campanulate, 7.0-10.0 mm long, sparsely tomentose, sometimes densely pubescent and glandular, sometimes hispid; outer involucral bracts linear, acute; inner involucral bracts narrowly ovate, obtuse. Receptacle areolate. Corolla ligulate, 11.0-12.0 mm long, yellow, pubescent; tube 4.5-5.0 mm long; ligule 1.0 mm wide. Anthertube 3.0 mm long; apical appendages acute, 0.6 mm long. Style branches 1.8 mm long, yellow. Achenes narrowly fusiform in outline, 5.0-6.5 mm long, 0.7 mm wide, finely muricate, subterete, dark brown or purplish, with 10-12 ribs, strongly attenuate. Pappus whitish or pale yellow, 5.0-6.5 mm long, persistent, flexible.

Based on: Babcock, E. B. 1947: The genus Crepis 2. – Univ. Calif. Publ. Bot. 22.

Distribution

Asia-Temperate: China South-Central (YunnannativeA,B) Asia-Tropical: LaosnativeB; MyanmarnativeB,C

Common names

Chinese (China): 抽茎还阳参 chou jing huan yang shenB

Bibliography

A. C. Shih, Flora Reipublicae Popularis Sinicae 80(1). 1997
B. Wu & al., Flora of China 20-21. 2011
C. Kress W. J., DeFilipps R. A., Farr E. & Daw Yin Yin Kyi, A checklist of trees, shrubs, herbs and climbers of Myanmar in Contr. U. S. Natl. Herb. 45. 2003