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FNA | Family List | FNA Vol. 22 | Juncaceae | Luzula

8. Luzula parviflora (Ehrhart) Desvaux, J. Bot. (Desvaux). 1: 144. 1808.

Small-flowered wood rush

Juncus parviflorus Ehrhart, Beitr. Naturk. 6: 139. 1791

Stolons to 5 cm or absent. Culms loosely cespitose, (20--)30--100 cm, base often reddish, often distinctly so at proximal internodes. Leaves: sheath throat with long, soft hairs; basal leaf blade 12--17 cm x 5--10 mm, mostly glabrous; cauline leaves 3--6, dull yellowish or bluish to gray-green to shiny, bright green, 7--9 cm x 3--5 mm, apex acute to acuminate. Inflorescences anthelate, few-to-many flowered, 4--20 x 4--12 cm; major branches spreading less than 90°, lax, often arching; proximal inflorescence bract inconspicuous to leaflike, to 5(--8) cm; bract margins entire to lacerate; bracteoles clear or brown, margins entire to lacerate. Flowers (1--)2--4, crowded or open; tepals pale brown to brown, broadly lanceolate, 1.8--2.5 mm, apex acute, not reflexed; anthers equaling to shorter than filaments; stigmas well exceeding style. Capsules straw-colored to dark brown to blackish, spheric, less than 2.5 mm, equal to generally longer than tepals; beak absent. Seeds brown to brownish red or purple, ellipsoid, 1.1--1.5 mm. 2n = 24.

Flowering and fruiting spring--late summer. Meadows in temperate to subalpine boreal forests, wet grasslands and tundra, willow copses, herb slopes; 0--3300 m.; Greenland; St. Pierre and Miquelon; Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., Que., Sask., Yukon; Alaska, Ariz., Calif., Colo., Idaho, Maine, Mass., Mich., Minn., Mont., Nev., N.H., N.Mex., N.Y., Oreg., S. Dak., Utah, Vt., Wash., Wis., Wyo.; Eurasia.

The base of the culm of Luzula parviflora is often reddish and often distinctly so at the proximal internodes.


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