Hieracium albiflorum Hook.

White hawkweed (en)

Species

Angiosperms > Asterales > Asteraceae > Hieracium

Characteristics

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.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.53 - 0.65
Root system -
Rooting depth (meter) 0.3
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 5-7
Soil humidity 2-4
Soil texture -
Soil acidity 5-7
Soil nutriment -
Hardiness (USDA) 4-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) 21 - 30
Germination temperacture (C°) 10 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Hieracium albiflorum unspecified picture

Distribution

Hieracium albiflorum world distribution map, present in Canada, Mexico, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:122153-2
WFO ID wfo-0000084549
COL ID 3LL2B
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hieracium albiflorum Hieracium albiflorum subvar. rosendahlii Hieracium albiflorum subvar. sanhedrinense