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  1. Life
  2. Plants
  3. Vascular Plants
  4. Dicots
  5. Sunflowers, Bellflowers, Fanflowers, and Allies
  6. Sunflower Family
  7. Fleabanes and Horseweeds
  8. Caenotus
  9. Horseweed

species 134,910 observations

Horseweed

Erigeron canadensis

Status
native
Bees
20 specialists raised on its pollen
Traits
Where
In the US
Source
iNaturalist

Field notes

Supports All

359 native animals
supported in the US
  • Caterpillars Moths and butterflies raised on it Common Eupithecia Moth, Wavy-lined Emerald, Speyer's Hooded Owlet, Silvery Checkerspot 22
  • Specialist bees Bees whose young are raised on the pollen of it Carpenter-mimic Leafcutter Bee, Pugnacious Leafcutter Bee, Sunflower Burrowing-Resin Bee, Horn-faced Leafcutter Bee 20
  • Hosted animals Gall makers, leaf miners and other animals living on or in it Asteromyia modesta, Neolasioptera erigerontis, Acmaeodera tubulus, Beautiful Fleabane Root-borer 5
  • Plant eaters Animals that feed on it Keeled Treehopper, North American Tarnished Plant Bug, Large Fleabane Daisy Aphid, Pissonotus binotatus 28
  • Flower visitors Pollinators and other flower visitors Fraternal Potter Wasp, Margined Calligrapher, Northern Paper Wasp, Common Grass Skimmer 284

Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided

Key traits

Layer
Herbaceous plants
Light
Full sun
Moisture
Well drained
Soil pH
Acid Neutral Alkaline
Plant type
Annual Weed

From NC State Extension and USDA PLANTS.

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