Androsace septentrionalis L.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Lvs oblanceolate, 1–3 cm, toothed or entire, sparsely to densely hairy with simple or forked hairs; scapes usually many, to 10+ cm, usually ± densely hairy with fine, branched hairs; umbels 3–25-fld, the bracts lanceolate or subulate, 1–3 mm, at least 4 times as long as wide; cal 2.5–4 mm, strongly carinate, the tube evidently longer than the ± deltoid lobes; cor white, the tube shortly exsert, the limb 3–4 mm wide; 2n=20. Circumboreal and polymorphic, extending s. to Que., Minn., and Ariz. May, June. (A. puberulenta)