Packera hyperborealis (Greenm.) Á.Löve & D.Löve

Northern groundsel (en)

Species

Angiosperms > Asterales > Asteraceae > Packera

Characteristics

Perennials, 6–20+ cm; fibrous-rooted or rhizomatous (rhizomes horizontal to suberect, stout). Stems usually 1, sometimes multiple, bases and leaf axils tomentose, otherwise glabrous. Basal leaves (and proximal cauline) petiolate; blades oblanceolate to obovate or lyrate (pinnately lobed to pinnatifid, terminal lobes larger than laterals), 10–30+ × 10–20+ mm, bases tapering, ultimate margins ± crenate to serrate. Cauline leaves gradually to abruptly reduced (sessile; pinnatisect or entire). Heads 1–2(–5+) in cymiform arrays. Peduncles bracteate (bractlets purple-tinged), glabrous or glabrate. Calyculi 0 or incon-spicuous (bractlets purple-tinged). Phyllaries 13, green (sometimes purple-tinged distally), 6–8 mm, glabrous. Ray florets 0 (rarely) or 10–12; corolla laminae 8–10 mm. Disc florets 45–60+; corolla tubes 3.5–4 mm, limbs 3–3.5 mm. Cypselae 1.5–2.5 mm, hirtellous on ribs; pappi 6–7 mm. 2n = 46.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.06 - 0.2
Root system fibrous-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

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

Cultivation

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

Distribution

Packera hyperborealis world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:20009836-1
WFO ID wfo-0000092489
COL ID 4BW9F
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Tephroseris hyperborealis Senecio lyallii Packera hyperborealis Senecio hyperborealis Tephroseris hyperborealis Packera lyallii Senecio hyperborealis var. hyperborealis Senecio hyperborealis subsp. hyperborealis Packera hyperborealis subsp. wrangelica Senecio hyperborealis subsp. wrangelica Tephroseris hyperborealis subsp. wrangelica Tephroseris hyperborealis subsp. wrangelica