Hieracium murorum

Linnaeus

Sp. Pl. 2: 802. 1753.

Introduced
Synonyms: Hieracium hyparcticum (Almquist) Elfstraud Hieracium lividorubens (Almquist) Zahn Hieracium stelechodes Omang
Treatment appears in FNA Volume 19. Treatment on page 290. Mentioned on page 282.

Plants 25–60+ cm. Stems proximally piloso-hirsute (hairs 1–3+ mm), distally stellate-pubescent and stipitate-glandular. Leaves: basal 3–6, cauline (0–) 2–3+; blades (often purple-mottled) ± elliptic, 50–110 × 25–45 mm, lengths 1.5–3 times widths, bases rounded to truncate, margins ± dentate, apices ± obtuse (apiculate), abaxial faces piloso-hirsute (hairs 1–3+ mm), adaxial scabrous to piloso-hirsute (hairs 0.5–3 mm). Heads 5–8+ in corymbiform arrays. Peduncles densely stellate-pubescent and stipitate-glandular. Calyculi: bractlets 8–13+. Involucres campanulate to obconic, 8–9 mm. Phyllaries 18–21+, apices ± acuminate, abaxial faces stellate-pubescent and stipitate-glandular. Florets 30–50+; corollas yellow, 12–13 (–16) mm. Cypselae columnar, 2.5–3 mm; pappi of 30–40+, stramineous bristles in ± 2 series, 4–5 mm.


Phenology: Flowering Jun.
Habitat: Disturbed sites (fields, openings in woods), thickets
Elevation: 0–100+ m

Distribution

V19-412-distribution-map.gif

Introduced; B.C., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., Que., Alaska, Conn., Ill., Maine, Mass., Mich., N.H., N.J., N.Y., Pa., Vt., Europe

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Hieracium murorum"
stipitate-glandular +, stellate-pubescent +  and piloso-hirsute +
scabrous +  and piloso-hirsute +
acuminate;obtuse +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
John L. Strother +
Linnaeus +
rounded to truncate +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (11 cm110 mm <br />0.11 m <br />) +
spatulate;oblong;spatulate;oblong;oblanceolate;lanceolate;elliptic +
2.5 cm25 mm <br />0.025 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
tuberculate +, rugose +, muricate +  and smooth +
deltate;lanceolate or linear +
filiform +
2 (?) +  and 3 (?) +
zygomorphic +, actinomorphic +  and (3-)5-merous +
1.3 cm13 mm <br />0.013 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
black +  and redbrown +
B.C. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, Que. +, Alaska +, Conn. +, Ill. +, Maine +, Mass. +, Mich. +, N.H. +, N.J. +, N.Y. +, Pa. +, Vt. +  and Europe +
0–100+ m +
winged +  and beaked +
dispersed +
Disturbed sites (fields, openings in woods), thickets +
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;obconic +
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
dentate +, denticulate +  and entire +
2-carpellate +
persistent +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
stipitate-glandular +  and stellate-pubescent +
not inflated +
Flowering Jun. +
connate +  and distinct +
18 +  and 21 +
subequal +  and unequal +
flat;convex +
exalbuminous +
Introduced +
stipitate-glandular +, stellate-pubescent +  and piloso-hirsute +
scapiform +
appendaged +  and truncate +
papillate +
Hieracium hyparcticum +, Hieracium lividorubens +  and Hieracium stelechodes +
Hieracium murorum +
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 />) +