Hieracium pringlei A.Gray

Pringle's hawkweed (en)

Species

Angiosperms > Asterales > Asteraceae > Hieracium

Characteristics

Plants 20–45+ cm. Stems proximally usually piloso-hirsute (or lanate, hairs 5–8+ mm, usually curled and tangled), sometimes nearly glabrous, distally piloso-hirsute (hairs 1–2+ mm) and stellate-pubescent. Leaves: basal (2–)3–8+, cauline (0–)3+; blades elliptic or spatulate to oblanceolate, lanceolate, or lance-linear, (35–)50–120(–200+) × 10–25(–40+) mm, lengths 2–5(–10+) times widths, bases ± cuneate, margins usually entire, rarely toothed, apices obtuse to acute, faces (proximal leaves) piloso-hirsute (to lanate, hairs 1–3+ mm; distal leaves often ± glabrate). Heads 3–12(–20+) in corymbiform arrays. Peduncles usually stellate-pubescent and stipitate-glandular. Calyculi: bractlets 3–5+. Involucres campanulate, (7–)8–9 mm. Phyllaries 12–15+, apices rounded to acute, abaxial faces stellate-pubescent and/or stipitate-glandular. Florets 12–15+; corollas yellow, 7–9 mm. Cypselae columnar, 2.2–4 mm; pappi of (40–)60–80, white or stramineous bristles in 2+ series, 4–5+ mm.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.45
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-5
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

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

Cultivation

Mode -
Germination duration (days) 21 - 30
Germination temperacture (C°) 10 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Hieracium pringlei world distribution map, present in Guatemala, Mexico, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:221727-1
WFO ID wfo-0000016670
COL ID 3LSLQ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Hieracium pringlei Pilosella stuposa Hieracium jaliscense Hieracium stuppatum Hieracium stuposum Hieracium jaliscense var. jaliscense Hieracium jaliscense var. eriobium Hieracium jaliscense var. guatemalense Stenotheca pringlei Hieracium jaliscense var. ghiesbreghtii