From Flora of Indiana (1940) by Charles C. Deam
A local plant in the northwestern counties, usually common where it is found. It is usually found in moist, open, sandy places about lakes, and was found once along a sandy roadside. Its habitat is doubtless minimacid because the plants most often associated with it are Rhexia virginica, Aletris, Hypericum gentianoides, Polygala cruciata, Gaultheria, and Vaccinium angustifolium.
Indiana Coefficient of Conservatism: C = 8
Wetland Indicator Status: FACW
Stems 3-5 dm, often branched from the base, bearded at the nodes and sometimes sparsely hairy on the angles; lvs firm, sessile or subsessile, linear or linear-oblong, 2-7 cm נ3-7(-12) mm, tapering at base, entire or with a few low teeth; verticils usually remote, the bracts entire, lance-linear; cal glabrous or with a few hairs on the upper side, the lobes glabrous, narrowly deltoid, nearly as long as the tube. Moist, usually sandy soil near the coast; Mass. to Ga.; also around the head of Lake Michigan. July-Sept. (S. atlantica)
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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