General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 10b
Plant Height: 6 - 24 inches
Plant Spread: Clump forming, 24 - 36 inches
Leaves: Other: Soft, pubescent leaves are highly variable in shape, some being heart-shaped, others elongated and triangular in shape..
Fruit: Other: Small, hairy achenes.
Fruiting Time: Summer
Flowers: Showy
Flower Color: Yellow
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Underground structures: Rhizome
Suitable Locations: Xeriscapic
Uses: Groundcover
Resistances: Fire Resistant
Drought tolerant
Pollinators: Wind
Various insects

Image
Common names
  • Heartleaf Arnica
  • Heart-Leaf Leopardbane
  • Heart-Leaved Arnica

Photo Gallery
Location: Yellowstone National Park 
Date: 2018-06-10

Date: July
credit: Dwindrim
Location: Yellowstone National Park 
Date: 2018-06-10
Comments:
  • Posted by KFredenburg (Black Hills, SD - Zone 5a) on Jun 21, 2020 1:00 PM concerning plant:
    In alpine areas or in open places along roads the leaves may be narrower and without the notch at the base of the blade. All western species have paired leaves in the stems, but only this one has heart-shaped leaves (hence the common name).
Plant Events from our members
Retro67 On February 3, 2024 Bloomed
Discovered in bloom abundantly around yard. Indicates acidity? Medicinal.
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