Cactoideae

Cactoideae
Mammillaria elongata
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Core eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Tribes
Browningieae Cacteae Calymmantheae Cereeae Hylocereeae Notocacteae Pachycereeae Rhipsalideae Trichocereeae

The Cactoideae are the largest subfamily of the cactus family, Cactaceae. The plants are highly variable in habit, treelike, shrubby, caespitose, climbing, or epiphytic, from 1 cm to 20 m high. Reproductive zones are usually undifferentiated, sometimes differentiated, or specific cephalium produced. Leaves are absent or rarely vestigial. Glochids are absent. Spines are usually present or rarely absent. Flowers are sessile, diurnal, or nocturnal, 1 - 30 cm in diameter, white, yellow, orange, red, purple, pink, or brown. Blue-coloured flowers are absent. Fruits are usually fresh and berry-like, and the seeds are small, 0.1 - 2.0 mm in size.