Hieracium longiberbe |
Hieracium lactucella |
|
---|---|---|
long-bearded hawkweed, longbeard hawkweed |
European hawkweed |
|
Habit | Plants 25–50+ cm. | Plants 9–20(–35+) cm. |
Stems | proximally piloso-hirsute (hairs 2–8+ mm), sometimes glabrate, distally glabrous or piloso-hirsute (hairs 2–5+ mm). |
proximally piloso-hirsute (hairs 1–2+ mm), sometimes stipitate-glandular as well, distally stellate-pubescent and stipitate-glandular (not piloso-hirsute). |
Leaves | basal 0(–3+), cauline 6–12+; blades spatulate to oblanceolate, 25–80(–100+) × 8–15(–25+) mm, lengths 3–5 times widths, bases ± cuneate, margins usually entire, rarely denticulate, apices obtuse to acute, abaxial faces piloso-hirsute (hairs 2–5+ mm), adaxial usually piloso-hirsute at margins (hairs 2–5+ mm), rarely glabrous. |
basal 5–8+, cauline 0(–2+); blades spatulate to oblanceolate, 15–40 × 5–12 mm, lengths 3–6+ times widths, bases cuneate, margins entire, apices rounded to acute, abaxial faces glabrous or piloso-hirsute (hairs 1–3+ mm), adaxial glabrous or piloso-hispid (hairs 1–3+ mm), sometimes stellate-pubescent as well. |
Peduncles | usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous. |
stellate-pubescent and stipitate-glandular (not piloso-hirsute). |
Involucres | campanulate, 7–10 mm. |
hemispheric, 6–8 mm. |
Florets | 12–24+; corollas yellow, 7–12 mm. |
40–60+; corollas yellow, 8+ mm. |
Phyllaries | 12–15+, apices ± rounded, abaxial faces piloso-hirsute and stellate-pubescent. |
16–21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute (hairs 0.8–1.5+) as well. |
Calyculi | bractlets 9–13+. |
bractlets 9–13+. |
Heads | (3–)6–12+ in corymbiform arrays. |
usually 2–5+ in ± umbelliform arrays, sometimes borne singly. |
Cypselae | columnar, ca. 3.5 mm; pappi of 32–40+, white or stramineous bristles in ± 2 series, 5–6 mm. |
columnar, 1–2.5 mm; pappi of 25–40, white bristles in 1 series, 4–5 mm. |
Hieracium longiberbe |
Hieracium lactucella |
|
Phenology | Flowering Jul. | Flowering May–Jul. |
Habitat | Cliffs | Pastures, fields |
Elevation | 30–100 m (100–300 ft) | 10+ m (0+ ft) |
Distribution |
OR; WA
|
NY; NS; Europe [Introduced in North America] |
Discussion | Hieracium longiberbe is known only from along the Columbia River. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
According to A. E. Roland and M. Zinck (1998), Hieracium auricula Linnaeus and Pilosella auricula (Linnaeus) Schultz-Bipontinus have been misapplied to plants here called H. lactucella (see also discussion at 5. H. caespitosum). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 19, p. 289. | FNA vol. 19, p. 284. |
Parent taxa | Asteraceae > tribe Cichorieae > Hieracium | Asteraceae > tribe Cichorieae > Hieracium |
Sibling taxa | ||
Name authority | Howell: Fl. N.W. Amer., 395. (1901) | Wallroth: Sched. Crit., 408. (1822) |
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