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Echinocereus primolanatus HO558 MG221.59 9/15/19
Another extreme example of baby/juvenile spines vs more adult spines (teen-age spines?). Note the extremely long and fine spines on all the plants, except that they dwindle to nothing as you get near the top of the right-most plant. If you grow your cacti from seeds, you'd experience these wonderful transformations. (39/40)