List by Scientific Name - List by Common Name

Laennecia coulteri

Coulter's Horseweed

Life form2, 3: forb, annual
Habitat: wetlands, valleys, fields
leaf presence3: leaves usually present
leaf arrangement3: alternate
leaf format3: simple
leaf shape3: spatulate to oblong
leaf surface3: glandular
leaf margin3: toothed to pinnatifid
Flower color2: yellow
Flowering period2: Apr. to Oct.
Armament2, 3: spineless
Family1, 2, 3: Asteraceae (sunflower family)
Conserved or Obsolete Family1: Compositae (composite family)
Synonym(s)1: Conyza coulteri
Status: uncommon
Locations where collected or observed:
      Cabeza Prieta National Wildlife Refuge
      Organ Pipe Cactus National Monument
      Tinajas Altas area
      Sonoran Desert National Monument

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

copyright © Hank Jorgensen 2007