Compilation
Hieracium umbellatum

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Name

Identification
Hieracium umbellatum L. [family ASTERACEAE ] (stored under name); Verified by Not on sheet, Hieracium umbellatum L. [family ASTERACEAE ] Verified by Not on sheet,
Related name
  • Hieracium indet.
  • Hieracium umbelliforme
  • Hieracium boreale
  • Hieracium umbellatum
  • Hieracium trachycaulon
  • Hieracium lanceolatum
  • Hieracium coronopifolium
  • Hieracium mineapolitanum
  • Hieracium sinense
  • Hieracium macranthum
  • Hieracium scabriusculum
  • Senecio

Flora

Entry for Hieracium umbellatum Linnaeus [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 19,
Names
Hieracium umbellatum Linnaeus [family COMPOSITAE], Sp. Pl., 2: 804. 1753
Hieracium acranthophorum Omang [family COMPOSITAE]
Hieracium canadense Michaux [family COMPOSITAE]
Hieracium canadense var. divaricatum Lepage [family COMPOSITAE]
Hieracium canadense var. fasciculatum (Pursh) Fernald [family COMPOSITAE]
Hieracium canadense var. hirtirameum Fernald [family COMPOSITAE]
Hieracium canadense var. subintegrum Lepage [family COMPOSITAE]
Hieracium columbianum Rydberg [family COMPOSITAE]
Hieracium devoldii Omang [family COMPOSITAE]
Hieracium ×dutillyanum Lepage [family COMPOSITAE]
Hieracium eugenii Omang [family COMPOSITAE]
Hieracium kalmii Linnaeus [family COMPOSITAE]
Hieracium kalmii var. canadense (Michaux) Reveal [family COMPOSITAE]
Hieracium kalmii var. fasciculatum (Pursh) Lepage [family COMPOSITAE]
Hieracium musartutense Omang [family COMPOSITAE]
Hieracium nepiocratum Omang [family COMPOSITAE]
Hieracium rigorosum (Laestadius ex Almquist) Almquist ex Omang [family COMPOSITAE]
Hieracium scabriusculum Schweinitz [family COMPOSITAE]
Hieracium scabriusculum var. columbianum (Rydberg) Lepage [family COMPOSITAE]
Hieracium scabriusculum var. perhirsutum Lepage [family COMPOSITAE]
Hieracium scabriusculum var. saximontanum Lepage [family COMPOSITAE]
Hieracium scabriusculum var. scabrum (Schweinitz) Lepage [family COMPOSITAE]
Hieracium stiptocaule Omang [family COMPOSITAE]
Hieracium umbellatum subsp. canadense (Michaux) Guppy [family COMPOSITAE]
Hieracium umbellatum var. scabriusculum (Schweinitz) Farwell [family COMPOSITAE]
Treatment Author(s)
John L. Strother
Information
Plants 15–60+ cm. Stems proximally usually glabrous, sometimes piloso-hirsute and/or stellate-pubescent, distally usually glabrous, sometimes stellate-pubescent. Leaves: basal 0(–2), cauline (5–)8–15(–45+); blades lance-elliptic to lanceolate, (20–)50–100(–150) × (10–)15–25(–40+) mm, lengths (3–)5–10+ times widths, bases cuneate to rounded or truncate (then sometimes ± clasping), margins usually toothed (to laciniate), denticulate, or entire (often ± revolute, at least distally), apices obtuse to acute, faces glabrous or ± stellate-pubescent, sometimes ± scabrellous (especially at or near distal margins). Heads (1–)5–30(–100+) in corymbiform to subumbelliform arrays. Peduncles usually stellate-pubescent. Calyculi: bractlets 9–15+. Involucres campanulate to hemispheric, (8–)9–11+ mm. Phyllaries 12–21+, apices rounded to acute, abaxial faces usually glabrous, rarely piloso-hirsute and/or stipitate-glandular. Florets 30–80+; corollas yellow, 10–18 mm. Cypselae columnar, 2.5–3.5 mm; pappi of 50–60+, stramineous to sordid bristles in ± 2 series, 6–7 mm.
Phenology
jun-aug (summer), sep (fall)
Altitude range
600–3200 m;
Distribution
GreenlandSt. Pierre and MiquelonEuropeAsia.USA AlaskaUSA Colo.USA Conn.USA IdahoUSA Ill.USA Ind.USA IowaUSA MaineUSA Mass.USA Mich.USA Minn.USA Mo.USA Mont.USA Nebr.USA N.H.USA N.J.USA N.Y.USA N.Dak.USA OhioUSA Oreg.USA Pa.USA R.I.USA S.Dak.USA Vt.USA Wash.USA W.Va.USA Wis.USA Wyo.Canada Alta.Canada B.C.Canada Man.Canada N.B.Canada Nfld. and Labr.Canada N.W.T.Canada N.S.Canada Ont.Canada P.E.I.Canada Que.Canada Sask.Canada Yukon
Discussion
The circumscription of Hieracium umbellatum adopted here is supported by research done by others, especially G. A. Guppy (1978) and E. Lepage (1960). Hieracium canadense var. kalmii (Linnaeus) Scoggan, referable here, is an illegitimate name.

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