Pachycereus schottii, Músaro, Sinita, Senita and a close up of this slow growing long lived columnar cactus occurring in the Sonoran Desert of Arizona and into northern Sonora. Sinita has limited its range to areas that do not get frost, but some cacti have shown callous from cold spells in the northern end of its range. The upper part of the stem has a dense cover of shaggy grey spines resembling an old man's beard which helps in differentiating it from another common column