Lucien Marcus Underwood,
Equisetum variegatum, Schleich…
(1882)
“ Mrs. A. E. Bush, of San Jose, Cal., has sent me specimens of an Equisetum, collected at the hills near that city, April 22, which must be referred to the above species. The stalks are densely tufted, and the grooves of the stem vary from 5 to 10, but are commonly 6 or 7 ”
