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1. Hyalolaena trichophylla (Schrenk) Pimenov & Kljuykov, Bot. Zhurn. 67: 887. 1982.
斑膜芹 ban mo qin
Carum trichophyllum Schrenk in Fischer & C. A. Meyer, Enum. Pl. Nov. 1: 61. 1841; Bunium trichophyllum (Schrenk) H. Wolff; Hymenolyma trichophyllum (Schrenk) Korovin.
Plants 30–70 cm, glabrous or subglabrous. Rootstock fusiform. Basal petioles 2.5–4 cm; blade 2–3-pinnate; primary pinnae 5–8 pairs; ultimate segments filiform, 3–5 × 0.2–0.3 mm. Umbels 2–5 cm across; bracts oblong, ca. 10 mm; rays 8–15, 1–4 cm, unequal; bracteoles oblong, whitish membranous, shorter than pedicels, 3-nerved; umbellules 8–15-flowered. Fruit 1–3 × 1–1.5 mm; ribs scabridulous; vittae solitary in each furrow, 2 on commissure. Fl. and fr. Jun–Jul.
Arid semi-deserts, stony slopes. W Xinjiang [Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan].
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