Hieracium lachenalii C.C.Gmel.
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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 - Plant with a short stout rhizome or caudex; stem 1.5–10 dm, sparsely setose and stellate to subglabrous; lvs long-hirsute, with narrowly to broadly elliptic or even lance-ovate blade 2–13 × 1.5–5.5 cm, tapering to the base, generally with at least a few sharp coarse teeth toward the base, mostly exceeding the petiole; cauline lvs 2–several, reduced and scattered upwards; infl open, corymbiform, the stout peduncles long-stipitate-glandular and ± stellate; invol 8–12 mm, hispid with blackish, gland-tipped hairs and often also stellate; fls 40–80; achenes 2.5–3.5 mm; 2n=27. Fields, roadsides, and other waste places; native to Europe, intr. from Nf. and Que. to N.J. and Minn. May–Aug. (H. maculatum, with spotted lvs; H. vulgatum)
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Common Names
European hawkweed