1 What is
1.1 Life Span
1.2 Type
1.3 Origin
Northeastern United States, Mid-Atlantic United States, North-Central United States, Central United States, Canada
Southwestern United States, Mexico
1.4 Types
it is a type of birch
Coryphantha ramillosa, Coryphantha echinus
1.4.1 Number of Varieties
1.5 Habitat
Hillside, Mountain tops
Desert, Grassland, Rocky areas, Sandy areas
1.6 USDA Hardiness Zone
1.7 AHS Heat Zone
1.8 Sunset Zone
A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16
12, 13, 21, 22, 23, 24
1.9 Habit