Juncus longiflorus (A. Camus) H. J. Noltie

Plants perennial, 10--25 cm tall. Rhizome creeping, densely branched, tufted. Stems densely clumped, terete, slightly compressed, striate. Cataphylls shortly aristate. Basal leaf 1, sometimes with remnants of old leaves; leaf sheath auricles obtuse, free part ca. 0.3 × 0.7 mm; leaf blade subterete to slightly compressed, 7--14 cm × 1--3 mm, sometimes septate, apex obtuse to subacute. Inflorescences seemingly pseudolateral; involucral bract leaflike, ovate-lanceolate, 1.5--3.5 cm, base black-brown; head usually solitary, 2--5(--7)-flowered. Perianth segments blackish brown to chestnut brown, lanceolate; outer segments 4.5--8 × 1.8--3 mm apex acuminate; inner segments slightly shorter than outer ones, margin broadly scarious, apex obtuse. Stamens 6; filaments 0.5--1.5 mm; anthers oblong, 2.2--4 mm. Style 2.5--3 mm; stigmas linear, 3--5.5 mm. Capsule chestnut brown at maturity, shiny, trigonous ovoid to trigonous ellipsoid, 4--5.9 mm, 3-septate, apex beaked; beak ca. 1 mm. Seeds oblong, 0.5--1 mm, both ends appendaged; appendages white, 0.8--1 mm. Fl. Jun--Oct, fr. Jul--Oct.

?Xizang, NW Yunnan [Bhutan].

Wet grasslands; 3600--4000 m.

Juncus sikkimensis J. D. Hooker var. longiflorus A. Camus in Lecomte, Notul. Syst. (Paris) 1: 283. 1910; J. sikkimensis var. helvolus K. F. Wu.

Juncus longiflorus là một loài thực vật có hoa trong họ Juncaceae. Loài này được (A.Camus) Noltie mô tả khoa học đầu tiên năm 1994.