Difference between revisions of "Cirsium ochrocentrum var. ochrocentrum"

Common names: Yellowspine thistle
Treatment appears in FNA Volume 19. Treatment on page 123.
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Latest revision as of 19:56, 5 November 2020

Stems densely leafy, nodes crowded. Leaves: distal cauline bases often long-decurrent. Corollas white or pale lavender to purple. 2n = 32, 34.


Phenology: Flowering spring–summer (May–Sep).
Habitat: Short-grass prairies, desert grasslands, sagebrush steppes, pinyon-juniper, mesquite woodlands, often in disturbed areas
Elevation: 400–2200 m

Distribution

V19-81-distribution-map.gif

Ariz., Calif., Colo., Kans., Nebr., N.Mex., Okla., S.Dak., Tex., Utah, Wyo.

Discussion

Variety ochrocentrum grows in the Great Plains from South Dakota to New Mexico and Texas. It has been introduced in California; perhaps the Utah and Arizona records are introductions as well.

Selected References

None.

Lower Taxa

None.
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 +