Bulbocodiums, sometimes called "Hoop Petticoats", occur as a species from the Iberian Peninsula through North Africa. Nivalis is a species from the Atlas mountains, small and bright. Bulbocodium grow freely (considered feral) in the south, but may struggle to return in zones below 6B. Narcissus bulbocodium;ssp.bulbocodium nivalis. (syn. N. jeanmonodii, N. juressianus, N. subnivalis).