familyCactaceae
subfamilyCactaceae subfam. Cactoideae
genusEchinomastus
speciesEchinomastus intertextus
Echinomastus intertextus var. intertextus
Revision as of 17:27, 18 September 2019 by FNA>Volume Importer
Stems spheric when young, ovoid to ovoid-cyli ndric with age, appearing smooth and easily handled. Spines closely appressed, except for the porrect abaxial central spine, which is 0.5–4(–5) mm. 2n = 22.
Phenology: Flowering Feb–Apr; fruiting Apr–Jun.
Habitat: Desert grasslands and plains grasslands, grassy hills, bajadas, sometimes with junipers or oaks, on igneous substrates (rarely limestone)
Elevation: 1000-1900 m
Distribution
Ariz., N.Mex., Tex., Mexico (Chihuahua).
Discussion
Most published records of Echinomastus intertextus from central New Mexico, and many from southern New Mexico, probably pertain to var. dasyacanthus; the varieties replace each other geographically, but many populations in south-central New Mexico may be intermediate, containing long-, medium-, and short-spined individuals. Although not documented for Sonora, var. intertextus is known less than one kilometer from the Mexican border in southeastern Arizona.
Selected References
None.
Lower Taxa
None.
... more about "Echinomastus intertextus var. intertextus"