Hieracium scabrum |
Hieracium longipilum |
|
---|---|---|
rough hawkweed |
hairy hawkweed, longbeard hawkweed |
|
Habit | Plants (15–)30–60+ cm. | Plants 30–75(–200) cm. |
Stems | proximally piloso-hirsute (hairs 1.5–5+ mm), sometimes stellate-pubescent as well, distally stellate-pubescent, sometimes stipitate-glandular, rarely piloso-hirsute (hairs 1–2+ mm). |
proximally piloso-hirsute (hairs 6–15+ mm), distally piloso-hirsute (hairs 3–10+ mm), sometimes stellate-pubescent as well. |
Leaves | basal 0(–3), cauline 6–24+; blades elliptic or oblanceolate to spatulate or lanceolate, (20–)35–80(–120+) × (10–)20–35(–50+) mm, lengths 2–6+ times widths, bases cuneate to rounded-truncate, margins usually entire, sometimes denticulate, apices rounded to obtuse, faces hirtellous to piloso-hirsute (hairs 0.5–1+ mm). |
basal 3–8+, cauline (3–)6–12+; blades oblanceolate, 45–80(–250+) × 12–30(–40+) mm, lengths 4–7+ times widths, bases cuneate, margins entire, apices rounded to acute, faces piloso-hirsute (hairs 3–8+ mm). |
Peduncles | stellate-pubescent and stipitate-glandular (hairs 0.3–0.6+ mm). |
stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well. |
Involucres | campanulate, 7–9 mm. |
campanulate, 6–8(–10) mm. |
Florets | (30–)40–60+; corollas yellow, 9–11 mm. |
30–40(–60); corollas yellow, ca. 7 mm. |
Phyllaries | 13–21+, apices ± acuminate, abaxial faces stellate-pubescent and stipitate-glandular, rarely, if ever, piloso-hirsute. |
12–21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular. |
Calyculi | bractlets 12–15+. |
bractlets 9–13+. |
Heads | (5–)10–25(–50+) in corymbiform to paniculiform arrays. |
10–20+ in paniculiform to nearly racemiform arrays. |
Cypselae | columnar, 2.5–3 mm; pappi of 30–40+, stramineous bristles in ± 2 series, 6–7 mm. |
urceolate, 3–4+ mm; pappi of 35–40+, stramineous to sordid bristles in 2+ series, 5.5–6.5 mm. |
Hieracium scabrum |
Hieracium longipilum |
|
Phenology | Flowering Jul–Sep. | Flowering Jul–Sep. |
Habitat | Sandy soils, open, disturbed sites (fields, stream sides), wooded sites | Fields, prairies, roadsides |
Elevation | 10–300+ m (0–1000+ ft) | 100–400 m (300–1300 ft) |
Distribution |
AR; CT; DC; DE; GA; IA; IL; IN; KY; MA; MD; ME; MI; MN; MO; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; VA; VT; WI; WV; NB; NS; ON; PE; QC
|
AR; IA; IL; IN; KS; KY; LA; MI; MN; MO; NE; OH; OK; TN; TX; WI; ON
|
Discussion | Hieracium longipilum may be no longer present in Quebec. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 19, p. 288. | FNA vol. 19, p. 285. |
Parent taxa | Asteraceae > tribe Cichorieae > Hieracium | Asteraceae > tribe Cichorieae > Hieracium |
Sibling taxa | ||
Synonyms | H. scabrum var. intonsum, H. scabrum var. leucocaule, H. scabrum var. tonsum | |
Name authority | Michaux: Fl. Bor.-Amer. 2: 86. (1803) | Torrey ex Hooker: Fl. Bor.-Amer. 1: 298. (1833) |
Web links |