Northeastern United States, Mid-Atlantic United States, North-Central United States, Central United States, Canada
Aegean Islands, Central Asia, Middle East, North Africa, Southern Europe, Western China
it is a type of birch
Crocus abantensis, Crocus adanensis, Crocus biflorus, Crocus chrysanthus, Crocus korolkowii
A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24