Spiraea alba Du Roi var. alba
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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
Rosaceae
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Scientific Name
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Description
Variety Description - Twigs dull brown or yellow-brown; lvs relatively narrow, oblanceolate, 3–4+ times as long as wide, finely and sharply toothed; infl evidently puberulent, as also the hypanthium and the usually obtuse sep. Wet meadows, swamps, and shores; relatively western, from Alta. and N.D. and S.D. to w. Que., s. to Ind., Mo., and N.C.