Crassulaceae

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Crassulaceae
Jade plant or Friendship Tree, Crassula ovata
Jade plant or Friendship Tree, Crassula ovata
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Saxifragales
Family: Crassulaceae
DC.
Genera

many, see text

The Crassulaceae, or orpine family, is a family of dicotyledons. They store water in their succulent leaves. They are found worldwide, but mostly occur in the Northern Hemisphere and southern Africa, typically in dry and/or cold areas where water may be scarce. The family includes about 1,400 species in 33 genera.


No member of this family is an important crop plant, but many are popular for horticulture; many members have a bizarre intriguing appearance, and are quite hardy, typically needing only minimal care. Familiar species include the Jade plant or "friendship tree", Crassula ovata.

Classification within the family is difficult because many of the species hybridize readily, both in the wild and in cultivation. Some older classifications included the Crassulaceae in the Rosales, but newer schemes treat them in the order Saxifragales.

CAM photosynthesis (Crassulacean Acid Metabolism) is named after the family, because the pathway was first discovered in crassulacean plants.

Rosularia flower
Rosularia flower
Sempervivum sobolifera (syn. Jovibarba globiferum subsp. globiferum), Hen and chicks
Sempervivum sobolifera (syn. Jovibarba globiferum subsp. globiferum), Hen and chicks


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