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On rock or in sandy or gravelly. Can occur on acid substrates but also on limestone.
Southern Greenland to northeast Alberta, south to northern GA and OK.
Stems branched and with numerous rhizophores, creeping and erect branches similar; erect stems to 6 cm, with tetragonous cones 1-1.5 cm long; leaves spirally arranged, appressed, firm, subulate, ciliolate, 1.5-2 mm long, with a scabrous slender white bristle 1-1.5 mm at the apex; sporophylls 4-ranked, broader than the leaves; megaspores yellowish, 0.5 mm wide.
Spores produced June to July
Wetland indicator: UPL
A drought adapted, mat forming species.
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Michael Hough © 2018