Crassulaceae

The Crassulaceae (, from Latin crassus, thick), also known as the crassulas, the stonecrops or the orpine family, are a diverse family of flowering plants primarily characterized by succulent leaves and a form of photosynthesis known as crassulacean acid metabolism (CAM), in which plants photosynthesize in the daytime and exchange gases during the cooler temperatures of the night. The blossoms of crassulas generally have five floral parts. Crassulaceae are usually herbaceous, though there are some subshrubs, and relatively few trees or aquatic plants.

herbaceous

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Hylotelephium is a genus of flowering plants in the stonecrop family Crassulaceae. It includes about 33 species distributed in Asia, Europe, and North America.

thumb|upright|Orostachys spinosa

Pachyphytum is a small genus of succulents in the stonecrop family, Crassulaceae, native to Mexico, where species can be found growing at elevations from above sea level. The generic name comes from the ancient Greek pachys ('thick') and phyton ('plant'), a reference of the succulent nature of the leaves.

thumbnail|Rosularia sempervivoides

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Jovibarba ("beard of Jupiter") is a small genus of three species of succulent flowering plants in the family Crassulaceae, endemic to mountainous regions in the southeastern quadrant of Europe. The genus is sometimes classified as a subgenus of Sempervivum, to which it is closely related. Jovibarba have pale-greenish-yellow or yellow actinomorphic flowers with about six petals, while Sempervivum have generally pinkish flowers with around twice as many petals, which open more widely than jovibarba flowers. The common name hen and chicks is applied to some Jovibarba species (and also species in

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Pseudosedum is a genus of flowering plants in the family Crassulaceae native to Central Asia and Siberia. ==Species== Species in the genus include: Pseudosedum acutisepalum C.-A.Jansson Pseudosedum affine (Schrenk) A.Berger Pseudosedum bucharicum Boriss. Pseudosedum campanuliflorum Boriss. Pseudosedum condensatum Boriss. Pseudosedum fedtschenkoanum Boriss. Pseudosedum ferganense Boriss. Pseudosedum kamelinii Palanov Pseudosedum karatavicum Boriss. Pseudosedum koelzii C.-A.Jansson Pseudosedum kuramense Boriss. Pseudosedum lievenii (Ledeb.) A.Berger Pseudosedum longidentatum Boriss.

Lenophyllum is a genus of flowering plants in the family Crassulaceae. The roughly seven species it contains are distributed in Texas in the United States and northeastern Mexico. Some authorities place it in the genus Sedum. Plants in this genus are distinguished from Sedum species by the presence of terminal inflorescences, erect petals, and opposite leaves. The name is derived from the Ancient Greek words ληνός (lenos), meaning "trough", and φύλλον (phyllon), meaning "leaf."

Sinocrassula is a genus of succulent, subtropical plants of the family Crassulaceae.

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Villadia is a genus of plants in the family Crassulaceae. It includes about 25 to 30 species distributed from Texas to Peru.

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Prometheum is a genus of plants in the family Crassulaceae.

Thompsonella is a genus of plants in the family Crassulaceae and is a member of the Acre clade. It includes about eight species endemic to Mexico.

Pistorinia is a genus of the succulent plant family Crassulaceae.

Petrosedum is a genus of flowering plants in the succulent family Crassulaceae (stonecrop family).

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Sempervivoideae is the largest of three subfamilies in the Saxifragales family Crassulaceae, with about 20–30 genera with succulent leaves. Unlike the two smaller subfamilies, it is distributed in temperate climates. The largest genus in this subfamily is Sedum, with about 470 species.

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Kalanchoideae is one of three subfamilies in the Saxifragales family Crassulaceae, with four succulent genera.

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Kungia is a genus of Crassulaceae that contains 2 accepted species. It is a perennial herb growing in China (Gansu, Shaanxi, Sichuan).

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Hypagophytum is a genus of plants in the family Crassulaceae. It includes only the species Hypagophytum abyssinicum, endemic to Eritrea and Ethiopia.

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Perrierosedum is a genus of succulent plant in the family Crassulaceae containing only one species, Perrierosedum madagascariense. It is a critically endangered species endemic to Madagascar.

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Afrovivella is a monotypic genus of the succulent plant family Crassulaceae. The sole species is Afrovivella semiensis.

Meterostachys is a genus of plants in the family Crassulaceae, that contains a single accepted species, Meterostachys sikokiana, native to Japan and Korea. It is little known and is difficult to cultivate.

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