Thalictrum dioicum L.
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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
Ranunculaceae
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Scientific Name
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Description
Species Description - Plants dioecious, 3–7 dm at anthesis; stem arising from a subterranean, fibrous-rooted crown; lvs glabrous, thin, flat-margined; petioles all elongate, the uppermost 3–6 cm and subtending the infl; stipules of upper lvs broadly ovate to semicircular or semilunate, mostly much wider than long; filaments and anthers yellow or greenish-yellow; achenes sessile or subsessile, 4 mm, strongly ribbed, straight and essentially symmetrical; 2n=28, 42. Abundant in moist woods; Que. to Man., s. to S.C., Ga., Ala., and Mo. Fl with or before the expansion of the lvs on deciduous trees.
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Common Names
early meadow-rue