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FOC | Family List | FOC Vol. 24 | Juncaceae | Juncus

70. Juncus nepalicus Miyamoto & H. Ohba, J. Jap. Bot. 68: 28. 1993.

矮茎灯心草 ai jing deng xin cao

Juncus amplifolius A. Camus var. pumilus A. Camus.

Plants perennial, 5--10(--25) cm tall. Rhizome creeping, knobby, stout. Stems terete to slightly flattened, 1--2 mm in diam. Cataphylls several, pinkish. Basal leaves 1--3, cauline leaf absent or 1; leaf sheath auricles absent; leaf blade flat, 5--14 cm × 2--6 mm, apex obtuse to acute. Inflorescences with involucral bract erect, leaflike, 1--6 cm, shorter or slightly longer than inflorescence; heads 1 or 2, 8--15 mm in diam., 3--9-flowered; basal bract leaflike, lanceolate, ca. 1.5 × 0.1--0.2 cm. Perianth segments reddish brown to purplish brown, lanceolate, 3.3--4 × ca. 1.2 mm, unequal with outer ones slightly shorter than inner, keeled, margin scarious, apex acute to acuminate. Stamens 6; filaments flat and wider at base, 1.5--2 mm; anthers ca. 1.3 mm. Style 2--2.5 mm; stigmas dark brown, linear, 2--2.5 mm. Capsule brown, ellipsoid, 5--6 mm, 3-septate, apex beaked; beak 2.5--3 × 2.5--3 mm. Seeds reddish brown, ovoid, ca. 0.8 mm, both ends appendaged; appendages white, 1--1.5 mm. Fl. Jun--Jul, fr. Aug.

Wet meadows on mountain slopes; ca. 3500 m. Xizang, Yunnan [Bhutan, Nepal, Sikkim].


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