Juncus articulatus L.
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Juncaceae
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Scientific Name
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Description
Species Description - Stems usually erect, rather closely set on a coarse rhizome, 1–6 dm, with chiefly cauline lvs, these 2–4, the blade mostly 2–15 cm × 0.7–1.5 mm, terete, aerenchymatously hollow, septate-nodulose; infl broadly ovoid to depressed, with divergent to widely ascending branches, up to nearly twice as long as wide, with few to many obpyramidal to subhemispheric, 3–10-ld glomerules; fls eprophyllate; tep lanceolate to lance-subulate, (2–)2.5–3 mm, subequal (or the pet a bit longer than the sep), the sep acute to subacuminate, the pet more often obtuse; stamens 6; fr unilocular, chestnut-brown to purple-brown, exsert, sharply ovoid-trigonous, tapering in the distal half, 2.5–4 mm, acute or seldom obtuse below the mucronate tip; seeds 0.5 mm; 2n=80. Bogs, wet meadows, and shores; circumboreal, s. in our range to R.I., W.Va., s. O., n. Ind., and Minn. A form with creeping stems, rooting at the nodes is rarely found.