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Life Form: annual forb
Leaf Description: alternate simple leaves
Flower Color: green
Flowering Period: Mar. to Apr.
Spines: spineless
Family: Asteraceae (sunflower family)
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References
"Arizona Flora", Thomas A. Kearney and Robert H. Peebles, 1960, University of California Press, Berkeley, Los Angeles, London (out of print)
page 886
"Flora of the Gran Desierto and Rio Colorado of Northwest Mexico (Southwest Center Series)", Richard Felger, 2001. University of Arizona Press, Tucson
page 132
page 101
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