General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Biennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Dry
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Fruiting Time: Fall
Flowers: Showy
Flower Color: Yellow
Bloom Size: Under 1"
Flower Time: Summer
Fall
Underground structures: Rhizome
Taproot
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Edible Parts: Leaves
Eating Methods: Tea
Resistances: Deer Resistant
Rabbit Resistant
Fire Resistant
Drought tolerant
Salt tolerant
Propagation: Seeds: Stratify seeds: 2 months cold moist treatment
Suitable for wintersowing
Pollinators: Various insects
Miscellaneous: Tolerates poor soil

Image
Common names
  • Curlycup gumweed
  • Gumweed
  • Curly-cup Gumweed
  • Rosin Weed

Photo Gallery
Location: The Black Hills, SD
Date: 9/13/2022
Grows Wildly
Location: The Black Hills, SD
Date: 9/13/2022
Grows Wildly
Location: The Black Hills, SD
Date: 9/13/2022
Grows Wildly
Location: All pictures taken in/on my gardens/greenhouse/property
Date: 2018-03-04

Credit NPS
Comments:
  • Posted by KFredenburg (Black Hills, SD - Zone 5a) on Jun 23, 2020 11:38 AM concerning plant:
    Depending on the soil it grows in, this plant can be very toxic, and it poses considerable problems for ranchers.

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