The thick sheet plants (Crassulaceae) educate a family of Bedecktsamigen plants (Magnoliophyta), which for the order of the Steinbrechartigen (Saxifragales) (in former times Rosales) heard. The plants of this family are able to store in its thick sheets water and survive in such a way in dry places relatively competitionless. They belong thus to the Blattsukkulenten. By Sukkulenten one understands plants, which store water (lat: "succus" = "juice").

The metabolism of the thick sheet plants exhibits a typical adjustment: the CAM mechanism. By the CAM ("Crassulaceae Acid Metabolism" = Crassulaceen acid metabolism) one understands a form metabolism, which enables the plants to keep to tags their gap openings closed (this sets the loss of water down) and the gas exchange to accomplish at night. The carbon dioxide is stored in apple acid and can be used tags for photosynthesis, without the plant tags must open their gap openings.

Systematics

To the thick sheet plants for example the kinds belong:

• Fat hens (Sedum), also wall pepper mentioned
• Hauswurz (Sempervivum) with the Untergattung Jovibarba

Furthermore (a selection):

• Adromischus
• Aeonium
• Aichryson
• Bryophyllum
• Cotyledon
• Crassula
• Dudleya
• Echeverie (Echeveria)
• Graptopetalum
• Greenovia
• Kalanchoe
• Monanthes
• Orostachys
• Pachyphytum
• Prometheum
• Rhodiola
  • Rosenwurz (Rhodiola rosea)
• Rosularia
• Tylecodon

Literature

• Henk't hard & Urs Eggli: Evolution and Systematics OF the Crassulaceae, Backhuis Publishers, suffering: 192 pp. (1995) ISBN 90-73348-46-3.
• Urs Eggli: Sukkulenten encyclopedia volume 4. Crassulaceae (thick sheet plants): 2003, ISBN 3-8001-3998-7.

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Articles in category "Thick sheet plants"

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