Hieracium albiflorum
Fl. Bor.-Amer. 1: 298. 1833
Synonyms: Chlorocrepis albiflora (Hooker) W. A. Weber
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
Phenology: Flowering (May–)Jun–Sep.
Habitat: Chaparral, conifer forests, meadows, stream beds, serpentines, volcanics, around mineral springs
Elevation: 10–2900 m
Distribution

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"
Author | John L. Strother + |
Authority | Hooker + |
Distribution | Alta. +, B.C. +, N.W.T. +, Que. +, Sask. +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, S.Dak. +, Utah +, Wash. +, Wis. +, Wyo. +, Mexico (Chihuahua + and Sonora). + |
Elevation | 10–2900 m + |
Habitat | Chaparral, conifer forests, meadows, stream beds, serpentines, volcanics, around mineral springs + |
Illustrator | Barbara Alongi + |
Phenology | Flowering (May–)Jun–Sep. + |
Publication title | Fl. Bor.-Amer. + |
Publication year | 1833 + |
Reference | None + |
Source xml | https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse grained fna xml/V19-20-21/V19 417.xml + |
Synonyms | Chlorocrepis albiflora + |
Taxon family | Asteraceae + |
Taxon name | Hieracium albiflorum + |
Taxon parent | Hieracium + |
Taxon rank | species + |
Volume | Volume 19 + |