Hieracium albiflorum

Hooker

Fl. Bor.-Amer. 1: 298. 1833

Synonyms: Chlorocrepis albiflora (Hooker) W. A. Weber
Treatment appears in FNA Volume 19. Treatment on page 292. Mentioned on page 281, 282.
Click plate for higher resolution version.
Illustrator: Barbara Alongi
Plants 15–40(–90) cm. Stems proximally usually piloso-hirsute (hairs 1–6+ mm), rarely glabrous, distally glabrous. Leaves: basal (0–)3–8+, cauline 1–5(–12+); blades oblanceolate, 40–100(–300) × 12–30(–60+) mm, lengths 3–5+ times widths, bases cuneate, margins usually entire, sometimes sinuately toothed, apices obtuse to acute, faces piloso-hirsute (hairs 1–6 mm), rarely glabrous. Heads (3–)12–50+ in corymbiform to paniculiform arrays. Peduncles usually glabrous, sometimes stipitate-glandular. Calyculi: bractlets 5–12+. Involucres ± campanulate, (7–)8–10(–11) mm. Phyllaries 8–13+, apices acuminate, abaxial faces piloso-hirsute (hairs 1–2+ mm), stellate-pubescent, and stipitate-glandular. Florets (6–)12–25+; corollas yellow, 9–10 mm. Cypselae columnar, 2.5–4 mm; pappi of 30–40+, stramineous bristles in ± 2 series, (4–)5–7 mm.

Phenology: Flowering (May–)Jun–Sep.
Habitat: Chaparral, conifer forests, meadows, stream beds, serpentines, volcanics, around mineral springs
Elevation: 10–2900 m

Distribution

V19-417-distribution-map.gif

Alta., B.C., N.W.T., Que., Sask., Alaska, Calif., Colo., Idaho, Mont., Nev., Oreg., S.Dak., Utah, Wash., Wis., Wyo., Mexico (Chihuahua, Sonora).

Discussion

References

None.

Lower Taxa

No lower taxa listed.

Facts about "Hieracium albiflorum"
AuthorJohn L. Strother +
AuthorityHooker +
DistributionAlta. +, B.C. +, N.W.T. +, Que. +, Sask. +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, S.Dak. +, Utah +, Wash. +, Wis. +, Wyo. +, Mexico (Chihuahua + and Sonora). +
Elevation10–2900 m +
HabitatChaparral, conifer forests, meadows, stream beds, serpentines, volcanics, around mineral springs +
IllustratorBarbara Alongi +
PhenologyFlowering (May–)Jun–Sep. +
Publication titleFl. Bor.-Amer. +
Publication year1833 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse grained fna xml/V19-20-21/V19 417.xml +
SynonymsChlorocrepis albiflora +
Taxon familyAsteraceae +
Taxon nameHieracium albiflorum +
Taxon parentHieracium +
Taxon rankspecies +
VolumeVolume 19 +