Dioon Palm (Dioon spinulosum)
The dioon has numerous long, flat leaves in a cross section. They have spineless margins and overlap towards the leaf apex. Leaf color is a light green or blue to blue-green. Female and male cones are similar, although the male are narrower.
Native habitat: Mexico
Size: Trunks are mostly subterranean. Above the ground they are only 8'' - 10''.
Cold hardiness: Tolerates frost.