As far as I knew, ssp. tortulospinus was totally endemic to Baja. I just perused Sonoran Desert Plants - Turner et. al (1995) and tortulospinus was still listed as restricted to BC. Your plant does look somewhat similar (lots of variation in F. cyl) but the tortulospinus i've seen were much more crazy in their spination. I'd love to see some citations of tortulospinus in Anza if you have them though.
SS
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