Juncus alpinoarticulatus Chaix
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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 - Much like no. 38 [Juncus articulatus L.], avg a little smaller, mostly 0.5–3 dm; infl slender, 5–15 cm, less than half as wide, its branches ± closely ascending or erect; tep mostly 1.5–2.5 mm, the sep obtuse or rounded but sometimes minutely apiculate, the pet a little shorter, generally broadly rounded at the tip; fr obtuse or rounded to the stylar apiculation; 2n=40, 80. Wet meadows and sandy or gravelly shores; circumboreal, s. in our range to Pa., Ind., and Mo. (J. alpinus) The name J. alpinoarticulatus ssp. americanus (Farw.) Hämet-Ahti has been proposed to cover most of the American plants, together with those from Kamchatka and easternmost Siberia, but the taxonomy and nomenclature are complex. The hybrid with no. 38 is J. ×alpiniformis Fernald; that with no. 30. is J. ×stuckeyi M. Reinking.