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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Crepis

7. Crepis oreades Schrenk ex Fischer & C. A. Meyer, Enum. Pl. Nov. 2: 32. 1842.

山地还阳参 shan di huan yang shen

Crepis oreades var. cinerascens Fischer & C. A. Meyer; Hieracioides oreades (Schrenk ex Fischer & C. A. Meyer) Kuntze.

Herbs 10-25[-30] cm tall, perennial, rosulate, with taproot sometimes shoot-bearing. Caudex 1-3 cm, covered with brown leaf bases of former leaves, simple or branched and thus with 1 or few leaf rosettes. Stems one or a few, slender, ascending to erect, simple or forked, sparsely white arachnoid hairy apically [sometimes additionally with long dark green to blackish glandular hairs], usually ± leafless. Rosette leaves numerous, oblanceolate to elliptic, 4-8 × 0.5-1 cm, shallowly pinnatifid to pinnatisect, abaxially weakly white arachnoid hairy [sometimes additionally with glandular hairs], base attenuate into a petiole-like portion, margin sinuate-dentate or entire; lateral lobes narrowly triangular, lanceolate, or sublinear, apex acute; terminal lobe triangular to lanceolate, apex acute. Stem leaves 0-2, ± linear, reduced in size, margin entire, apex acute. Capitula 1 or 2 per stem, with many florets. Involucre narrowly campanulate, 9-12 × 5-8 mm. Phyllaries abaxially white arachnoid hairy especially along midvein [sometimes additionally with long dark green to blackish glandular hairs]; outer phyllaries linear-lanceolate, longest ca. 5 mm, apex acute; inner phyllaries ca. 12, adaxially appressed hairy, margin scarious, apex acute. Anther tube ca. 4 mm. Achene orangish brown, fusiform, 5-6 mm, straight or subcurved, with 10-15 ribs, apex weakly attenuate. Pappus white, 4-6 mm. Fl. Jul.

Gravelly areas on mountain slopes; 1000-3800 m. Qinghai, Xinjiang [Afghanistan, Kazakhstan, Kyrgyzstan, Tajikistan].

The diploid Crepis oreades and the tetraploid, hybridogenous C. crocea (presumably C. oreades × C. bungei Ledebour ex Candolle) are very similar. In China, C. oreades is of much more restricted distribution, and the very limited material seen is of the (typical) form with involucres and peduncles exclusively white arachnoid hairy, whereas in adjacent Kyrgyzstan and Tajikistan the form (described as C. oreades var. cinerascens) additionally with blackish glandular hairs on involucres and peduncles prevails.


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