Leontodon autumnalis 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
Asteraceae
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Scientific Name
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Description
Species Description - Fibrous-rooted perennial from a short caudex or crown; scapes 1–8 dm, commonly decumbent at the base, scaly-bracted at least above, ordinarily branched, commonly tomentose-puberulent at the summit, otherwise glabrous; basal lvs oblanceolate, 4–35 × 0.5–4 cm, glabrous or moderately hirsute, deeply, narrowly, and rather distantly lobed to occasionally entire; heads terminating the branches; invol 7–13 mm, with narrow, imbricate bracts, scarcely elongating in fr; achenes fusiform-columnar, not beaked, weakly nerved, transversely rugulose, 4–7.5 mm; pappus wholly of plumose bristles, these chaffy-flattened at the base; 2n=12, 24. Roadsides, pastures, fields, meadows, and waste places; native of Eurasia, now established from Del. to Greenl. and inland sometimes to Wis. June–Oct. (Apargia a.) Var. autumnalis has the invol merely tomentose-puberulent to glabrous. Var. pratensis (Less.) Koch, more boreal, has the invol also spreading-hirsute.
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Common Names
fall dandelion