Arnica acaulis Britton, Sterns & Poggenb.

Common leopardbane (en)

Species

Angiosperms > Asterales > Asteraceae > Arnica

Characteristics

Perennial 2–8 dm from a short, simple, erect caudex 5–20 mm, with numerous fibrous roots; herbage glandular and hirsute; basal lvs rosulate, sessile or nearly so, broadly elliptic to ovate or even rhombic, obscurely toothed or subentire, 4–15 × 1.5–8 cm; cauline lvs few and reduced, the uppermost often alternate; heads 3–20, campanulate, the disk 13–20 mm wide; invol 10–12 mm; rays 10–15, 1.5–2.5 cm; pappus white, merely barbellate; 2n=38. Sandy pine woods; Del. and se. Pa., s. mainly along the coastal plain to Fla. May–July.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.8
Root system fibrous-root tap-root
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 3-7
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses medicinal
Edible -
Therapeutic use Analgesic (root), Orthopedic Aid (root)
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 25 - 30
Germination temperacture (C°) 12
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Arnica acaulis world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:19842-2
WFO ID wfo-0000132307
COL ID GT2M
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Doronicum acaule Arnica acaulis Arnica nudicaulis Grammarthron oppositifolium Doronicum nudicaule Arnica claytonii Doronicum claytonii Arnica nudicaulis