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David J. Keil +
A. Gray +
Yellowspine thistle +
Ariz. +, Calif. +, Colo. +, Kans. +, Nebr. +, N.Mex. +, Okla. +, S.Dak. +, Tex. +, Utah +  and Wyo. +
400–2200 m +
Short-grass prairies, desert grasslands, sagebrush steppes, pinyon-juniper, mesquite woodlands, often in disturbed areas +
Flowering spring–summer (May–Sep). +
Mem. Amer. Acad. Arts, n. s. +
Asteraceae tribe Cynarea +
Cirsium ochrocentrum var. ochrocentrum +
Cirsium ochrocentrum +
variety +