Hieracium scabrum

Michaux

Fl. Bor.-Amer. 2: 86. 1803.

IllustratedEndemic
Synonyms: Hieracium scabrum var. intonsum Fernald & H. St. John Hieracium scabrum var. leucocaule Fernald & H. St. John Hieracium scabrum var. tonsum Fernald & H. St. John
Treatment appears in FNA Volume 19. Treatment on page 288. Mentioned on page 281, 293.

Plants (15–) 30–60+ 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). 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). Heads (5–) 10–25 (–50+) in corymbiform to paniculiform arrays. Peduncles stellate-pubescent and stipitate-glandular (hairs 0.3–0.6+ mm). Calyculi: bractlets 12–15+. Involucres campanulate, 7–9 mm. Phyllaries 13–21+, apices ± acuminate, abaxial faces stellate-pubescent and stipitate-glandular, rarely, if ever, piloso-hirsute. Florets (30–) 40–60+; corollas yellow, 9–11 mm. Cypselae columnar, 2.5–3 mm; pappi of 30–40+, stramineous bristles in ± 2 series, 6–7 mm.


Phenology: Flowering Jul–Sep.
Habitat: Sandy soils, open, disturbed sites (fields, stream sides), wooded sites
Elevation: 10–300+ m

Distribution

V19-405-distribution-map.gif

N.B., N.S., Ont., P.E.I., Que., Ark., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mich., Minn., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Hieracium scabrum"
piloso-hirsute +, stipitate-glandular +  and stellate-pubescent +
acuminate;rounded;obtuse +
scarious +
ovate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
John L. Strother +
Michaux +
cuneate +  and rounded-truncate +
compound +  and simple +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (8 cm80 mm <br />0.08 m <br />) +
oblanceolate;spatulate or lanceolate +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
tuberculate +, rugose +, muricate +  and smooth +
deltate;lanceolate or linear +
filiform +
6 (?) +  and 24 (?) +
zygomorphic +, actinomorphic +  and (3-)5-merous +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
black +  and redbrown +
N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Ark. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
10–300+ m +
hirtellous +  and piloso-hirsute +
winged +  and beaked +
dispersed +
Sandy soils, open, disturbed sites (fields, stream sides), wooded sites +
in corymbiform , paniculiform , thyrsiform , umbelliform or nearly racemiform , arrays +  and singly +
indeterminate +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
campanulate +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
denticulate +
2-carpellate +
persistent +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
stipitate-glandular +  and stellate-pubescent +
not inflated +
Flowering Jul–Sep. +
connate +  and distinct +
13 +  and 21 +
subequal +  and unequal +
Fl. Bor.-Amer. +
flat;convex +
exalbuminous +
Illustrated +  and Endemic +
piloso-hirsute +, stipitate-glandular +  and stellate-pubescent +
scapiform +
appendaged +  and truncate +
papillate +
Hieracium scabrum var. intonsum +, Hieracium scabrum var. leucocaule +  and Hieracium scabrum var. tonsum +
Hieracium scabrum +
Hieracium +
species +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
20 cm200 mm <br />0.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +