List by Scientific Name - List by Common Name

Erigeron canadensis

Horseweed, cola de caballo

Life form2, 3: forb, annual
Habitat: disturbed areas
leaf presence3: leaves usually present
leaf shape3: oblanceolate to linear
leaf surface3: rough to smooth
leaf margin3: toothed to entire
Flower color2: white or whitish
Flowering period2: Jul. to Oct.
Armament2, 3: spineless
Family1, 2, 3: Asteraceae (sunflower family)
Conserved or Obsolete Family1: Compositae (composite family)
Synonym(s)1: Conyza canadensis
Status: introduced,naturalized,locally common
Locations where collected or observed:
      Cabeza Prieta National Wildlife Refuge
      Organ Pipe Cactus National Monument
      Barry M. Goldwater Range
      Sonoran Desert National Monument

*For information on nomenclature, authorship, or plant characteristics, see these references:

copyright © Hank Jorgensen 2007