The Crassulaceae reference article from the English Wikipedia on 24-Jul-2004
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Crassulaceae

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Orpine family
Scientific classification
Kingdom:Plantae
Division:Magnoliophyta
Class:Magnoliopsida
Order:Saxifragales
Family:Crassulaceae
Genera

HeffrumaenEnlarge

Heffrumaen

Money treeEnlarge

Money tree

The Crassulaceae, or orpines, are a family of dicotyledons. They store water in their succulent leaves. Some older classifications included the Crassulaceae in the Rosales but newer schemes remove them to the order Saxifragales.

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

Two typical members of the Crassulaceae: In their thick, succulent leaves they store water. Left:Sempervivum heuffelii, type from Romania, in cultivation. Photo: Manuel Werner. Germany

Beneath, right: Crassula ovata from southern Africa, the so called "money tree" or "Jade plant".