Ranunculus fascicularis Muhl. ex Bigelow
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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 - Perennial 1–2 dm or at maturity 3 dm tall, erect or ascending, not becoming repent; pubescence mostly appressed; rhizome short, regenerated each year; some roots very slender, others usually becoming thickened in late season and to 5 cm long; lvs mostly basal, the blade ovate in outline, longer than wide, the terminal segment stalked, all segments deeply lobed and the lobes generally incised or coarsely crenate; cauline lvs 1–3, smaller, sessile or nearly so, less divided; fls long-pedicellate; pet 5–7(–10), widest near or below the middle, 8–14 × 3.5–5.5 mm; anthers 1.3–1.8 mm; receptacle ± conic above the broad staminal zone; achenes rotund, the body 2–3.5 mm, sharply margined, but the adjacent lateral nerves not much raised; beak slender, straight or nearly so, 1.5–3 mm; 2n=32. Prairies and dry woods; Mass. to s. Ont. and Minn., s. to N.J., Md., W.Va., Tenn., La., and Tex. Apr., May.
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Common Names
thick-root buttercup