Difference between revisions of "Hieracium vulgatum"

Revision as of 18:37, 24 September 2019

Plants 30–60(–100+) cm. Stems proximally piloso-hirsute (hairs 1–3+ mm), distally stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well (hairs 1–2+ mm). Leaves: basal 3–8+, cauline 1–5+; blades (often purple-mottled) lance-elliptic to lanceolate, 50–100 × 10–50+ mm, lengths 2–5 times widths, bases usually cuneate, sometimes rounded to truncate, margins ± dentate or entire, apices acute, faces usually ± piloso-hirsute (at least near margins, hairs 1–3+ mm), sometimes glabrate. Heads (1–)3–9+ in corymbiform arrays. Peduncles stellate-pubescent and stipitate-glandular. Calyculi: bractlets 13–16+. Involucres ± obconic, 8–10 mm. Phyllaries ca. 21+, apices acute to acuminate, abaxial faces stellate-pubescent and stipitate-glandular. Florets 40–80+; corollas yellow, 13–18 mm. Cypselae columnar, 2.5–3 mm; pappi of 30–40+, stramineous bristles in ± 2 series, ca. 5 mm.

Phenology: Flowering (Jun–)Jul–Aug.
Habitat: Disturbed sites, openings in thickets
Elevation: 10–100+ m

Greenland, B.C., N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Conn., Del., Maine, Mass., Mich., Minn., N.H., N.J., N.Y., Oreg., Pa., R.I., Vt., Wash., Wis., Europe.

Discussion

The correct name for the species here called Hieracium vulgatum may be H. lachenallii C. C. Gmelin (E. Lepage 1971; E. G. Voss 1972–1996, vol. 3). Plants of H. groenlandicum (stems mostly piloso-hirsute and not stipitate-glandular, corolla lobes distally ciliate) are sometimes treated as distinct from H. vulgatum in a narrow sense (stems usually stipitate-glandular and not piloso-hirsute, corolla lobes not ciliate distally).

Selected References

None.

Lower Taxa