Cirsium ochrocentrum var. martinii
Sida 21: 215. 2004.
Common names: Martin’s thistle
Basionym: Cirsium ochrocentrum subsp. martinii Barlow-Irick Novon 9: 320, fig. 2. 1999
Treatment appears in FNA Volume 19. Treatment on page 123.
Stems leafy, nodes usually well separated. Leaves: distal cauline bases clasping, or if decurrent, spiny wings usually less than 1 cm. Corollas red, pink, or reddish purple (rarely white). 2n = 30, 31, 32, 34.
Phenology: Flowering spring–autumn (May–Sep).
Habitat: Desert grasslands, arid shrublands, pine-, oak-, juniper-, or mesquite-dominated woodlands, often in disturbed areas, grassy slopes in montane pine forests
Elevation: 1300–2200 m
Distribution
Ariz., N.Mex., Mexico (Chihuahua, Coahuila, Sonora, Durango).
Discussion
Variety martinii occurs from east-central and southeastern Arizona to western New Mexico and is scattered southward into north-central Mexico.
Selected References
None.
Lower Taxa
None.
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