Juncus tenuis path rush Juncaceae  JUTE; Bx, br, bz, cn, hi, pb, sf, sn, vc, wv; NY, ct, iw, rr, tr; Q, a, cu, f, fr, i, j, ri, tl, wl; K, fs; R, ah, ar, bg, bm, c, cg, cl, cp, d, e, fk, gb, h, is, jl, js, k, lp, mm, sb, sm, sv, t, v, w, wp, wt; 

Juncus tenuis.swbiodiversity.org

Juncus tenuis.© Biopix: JC Schou www.biopix.com/photo.asp?photoid=3375&photo=juncus-tenuis.SEINet.swbiodiversity.org

Juncus tenuis is a perennial, C3 rush (Basinger 2002), tufted, 10-80 cm tall (mostly less than about 30 cm), stems wiry, slender.

Leaves to 10-30 cm long, 0.1 cm wide, flat or becoming in-rolled, all basal or nearly basal, sheath margins membranous, the top lobed.

Flowers radially symmetrical, sepals and petals to 0.5 cm, longer than fruit, inflorescence loose, branched, bracts linear 1-10 cm, often longer than inflorescence;  June-Aug.

Juncus tenuis. Flowers and fruits- By Glen Mittelhauser. Copyright © 2016 Glen Mittelhauser.New England Wild Flower Society.gobotany.newenglandwild.org

Juncus tenuis. Flowers and fruits- By Glen Mittelhauser. Copyright © 2016 Glen Mittelhauser.New England Wild Flower Society.gobotany.newenglandwild.org (Accessed 1/2016).

Fruit greenish to tan, usually shiny, to 0.4 cm, rounded on top, interior partitions not meeting in the center (use lens), July-Oct. 

Wetland status: FAC. 

Frequency in NYC: Common. 

Origin: Native. 

Habitat: Open areas or part-shade, soil pH 4.5-7, tolerant of fire, moderately tolerant of shade, intolerant of salt, drought (USDA, NRCS 2010). 

Notes: Tolerates dry, compacted soil and moderate trampling, often the only plant growing along paths, sometimes in wet meadows.