United States, Arkansas, Washington, Raised from achenes from Daniel 1955 (see collection note), in the greenhouse in Fayetteville. Collection data for T. F. Daniel 1955 (at CAS): Mexico. Sonora: Rocky slopes of "Microondas Mountain "overlooking Guaymas, along road to top which is 1.8 mi. from Mex. highway 15 on paved road to airport, N. of Guaymas. Subhcrub; rays white with purple stripes below; disc flowers yellow; common. 11 Jan. 1982.
Raised from achenes from Daniel 1955. Plant short (ca. 23 Cm. tall) and appears to be annual, lacks reddish line on achene wings; possibly C. shrevei var. latilobus? Chromosome number: n=12. Pollen st. = 94% Leaves somewhat pale-punctate. Collection data for T. F. Daniel 1955 (at CAS): Mexico. Sonora: Rocky slopes of "Microndos Mountain" overlooking Guaymas, along road to top which is 1.8 mi. from Mex. Highway 15 on paved road to airport, N. of Guaymas. Subshrub; rays white with purple stripes below; disc flowers yellow; common.