Spurred anoda
Anoda cristata (L.) Schlecht
Keys to Identification
Solitary light-blue to lavendar flower- Arrow-shaped leaves
This information courtesy of the Colorado Natural Areas Program
Family: Malvacaea (Mallow)
USDA Code: ANCR2
Legal Status: Colorado Noxious Weed List B
Identification
Lifecycle: Annual
Growth form: Forb
Flower: Solitary, light blue to lavender
Seeds/Fruit: Capsule contains 10 to 20 segments each with a brown or black kidney shaped seed.
Leaves: Alternate, triangular to arrow shaped. Coarsely toothed with three distinct lobes.
Stems: Erect, reaching 3 ½ feet in height and branch at the base.
Roots: Taproot.
Seedling: One round and one heart-shaped cotyledon with hairs along the margins of the leaves.
Similar Species
Natives: Prickly Sida and Velvetleaf
Impacts
Agricultural: Invades soybean and cornfields reducing quantity and quality.
Habitat and Distribution
General requirements: Found in ditches, crops, waste areas, along roadsides, and in gardens.
Distribution: Distribution has spread from Iowa to Arizona
Historical: Native of the Southwest.
References
Whitson, T.D.(ed.), L.C. Burrill, S.A. Dewey, D.W. Cudney, B.E. Nelson, R.D. Lee, R. Parker. 5th Edition 1999. Weeds of the West. Western Society of Weed Science, in cooperation with the Western United States Land Grant Universities Cooperative Extension Services, Newark, CA
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