Rhamnaceae genera

genus of plants

Ziziphus is a genus of spiny shrubs and small trees in the buckthorn family, Rhamnaceae. It includes 68 species native to tropical and subtropical Africa, Eurasia, and Australia and tropical South America. The leaves are alternate, entire, with three prominent basal veins, and often aromatic. The flowers are small, inconspicuous yellow-green. The fruit is an edible drupe, often very sweet and sugary, reminiscent of a date in texture and flavour.

Frangula is a genus of about 56 species of flowering shrubs or small trees, commonly known as buckthorn, in the buckthorn family Rhamnaceae. The common name buckthorn is also used to describe species of the closely related genus Rhamnus in the same family, and also the superficially similar but unrelated sea-buckthorn, Hippophae rhamnoides in the Elaeagnaceae.

Paliurus is a genus of flowering plants in the family Rhamnaceae. The eight species are native to warm, dry regions of Eurasia and North Africa from Morocco and Spain east to Japan and Taiwan.

Colubrina is a genus of about 30 species of flowering plants in the family Rhamnaceae, native to warm temperate to tropical regions of Africa, the Americas, southern Asia, northern Australia, and the Indian Ocean islands.

Hovenia is a small genus of deciduous trees or shrubs in the family Rhamnaceae. They occur naturally from India to Japan. The Japanese, or Oriental raisin tree, Hovenia dulcis, is the best known species, as it is often planted in gardens outside Asia.

Ceanothus is a genus of about 50–60 species of nitrogen-fixing shrubs and small trees in the buckthorn family (Rhamnaceae). Common names for members of this genus are buckbrush, California lilac, soap bush, or just ceanothus. The genus is native to North America, ranging from Canada and the United States south through Mexico to Panama, with the center of diversity in the California floristic province of the western United States and Mexico, where around ~42 species are endemic out of the roughly ~58 species in the genus. Most Ceanothus are shrubs, with some species rarely tree-like while other

Colletia is a genus of flowering plants belonging to the Rhamnaceae family, with five species of spiny shrubs. All species of this genus are native to southern South America. They are non-legume nitrogen fixers.

Alphitonia is a genus of arborescent flowering plants comprising about 15 species, constituting part of the buckthorn family (Rhamnaceae). They occur in tropical regions of Southeast Asia, Oceania and Polynesia. These are large trees or shrubs. In Australia, they are often called "ash trees" or "sarsaparilla trees". This is rather misleading however; among the flowering plants, Alphitonia is not closely related to the true ash trees (Fraxinus of the asterids), and barely at all to the monocot sarsaparilla vines (Smilax).

Berchemia is a genus of plants in the family Rhamnaceae, named after Dutch botanist Berthout van Berchem. They are climbing plants or small to medium-sized trees that occur mostly in Southeast Asia, with one species in North America.

thumb|Phylica rosmarinifolia

Sageretia (mock buckthorn or sageretia) is a genus of about 35 species of shrubs and small trees in the family Rhamnaceae, native to southern and eastern Asia and northeast Africa. They have small green leaves 1.5–4 cm long, and a leathery multicoloured trunk. The flowers are small and inconspicuous; the fruit is a small edible drupe 1 cm diameter.

Scutia is a genus of flowering plants in the family Rhamnaceae, native to the Galápagos, South America, Africa, Madagascar, the Mascarene Islands, the Indian subcontinent, Sri Lanka, southern China and Southeast Asia. They are shrubs or small trees.

Rhamnella is a genus of plants in the family Rhamnaceae, distributed throughout parts of Asia and the Pacific.

Berchemiella is a genus of plants in the family Rhamnaceae. It includes two species, one found in China and another in Japan.

Spyridium is a genus of about thirty species of flowering plants in the family Rhamnaceae, and is endemic to Australia. Plants in the genus Spyridium are shrubs or subshrubs usually with small leaves, flowers usually in clusters of small composite heads, the individual flowers small and densely woolly-hairy, and the fruit a capsule. Species of Spyridium are found in all Australian states except Queensland.

Bathiorhamnus is a genus of flowering plants belonging to the family Rhamnaceae.

Pomaderris is a genus of about 80 species of flowering plants in the family Rhamnaceae. The genus is mostly native to Australia, but is also present in New Zealand. Plants in the genus Pomaderris are usually shrubs, sometimes small trees with simple leaves arranged alternately along the branches and bisexual, woolly-hairy flowers arranged in racemes or panicles. The flowers are usually yellow and often lack petals.

Condalia is a genus of spiny shrubs in the tribe Rhamneae of the buckthorn family, Rhamnaceae. It was named for Antonio Condal, an 18th-century Spanish physician. Members of the genus are native to tropical and subtropical deserts and xeric shrublands in North and South America. The ranges of each species vary considerably; some are confined to only a few square miles, while others can be found on an area up to .

Discaria is a genus of 6 species of flowering plants in the family Rhamnaceae, native to temperate regions of the Southern Hemisphere, in Australia, New Zealand and South America.

Reynosia is a genus of plant in family Rhamnaceae. Darlingplum is a common name for this genus.

Trymalium is a genus of shrubs or trees in the family Rhamnaceae. The species are endemic to Western Australia but for one, Trymalium wayi, that occurs in South Australia. They are found in forest and semiarid woodland and shrubland of the kwongan in southwest Australia, and the outlying species of South Australia is found on rocky slopes, notably at the Mount Lofty and Flinders Ranges.

thumb|Cryptandra arbutiflora thumb|Cryptandra spinescens in the [[Australian National Botanic Gardens]]

Ampelozizyphus is a genus of plants in the family Rhamnaceae. It includes two species Ampelozizyphus amazonicus, which is known from Amazonian Peru, Colombia, Venezuela, Guyana, Suriname, French Guiana, and Brazil, and Ampelozizyphus guaquirensis, native to the central portion of the Coastal Cordillera of Venezuela.

Stenanthemum is a genus of flowering plants family Rhamnaceae and is endemic to Australia. Plants in the genus Stenanthemum are small shrubs usually lacking spines. The leaves are arranged alternately along the branches, simple, usually folded in half lengthwise on a short petiole. The flowers are arranged in dense heads, usually on the ends of branches with bracts at the base of the flowers, and there are sometimes whitish floral leaves. The flowers are bisexual, more or less sessile and have five sepals, five petals and a tube-shaped hypanthium, the petals hooded over the stamens. The fruit

Papistylus is a genus of flowering plants belonging to the family Rhamnaceae.

Karwinskia is a genus of flowering plants in the family Rhamnaceae.

Adolphia is a genus of shrubs in the buckthorn family containing only two species.

Gouania is a genus of flowering plants in the family Rhamnaceae. The 50 to 70 species it contains are native to tropical and subtropical regions of the world, including Africa, Madagascar, the Indian Ocean islands, southern Asia, the Americas and Hawaii. They are shrubs or lianas. A revision of the species in Madagascar and the other western Indian Ocean islands is in preparation, where the genus has an important centre of diversity. The work will recognise several new species.

Emmenosperma is a small genus of mostly tropical trees in the family Rhamnaceae. The name comes from the Greek "emmeno" meaning (I cleave) and "sperma", (seed). It refers to the seeds remaining after the fruit valves have fallen away. It is related to Jaffrea, endemic to New Caledonia.

Rhamnidium is a genus of flowering plants in the family Rhamnaceae.

Auerodendron is a genus of plant in family Rhamnaceae.

thumb|Ventilago denticulata

Smythea is a genus of plants in the family Rhamnaceae. It includes eleven species found in southeast Asia and Polynesia.

Lasiodiscus, commonly known as red-hair bushes, is a small plant genus in the family Rhamnaceae. It is endemic to Africa and its adjacent islands.

Retanilla is a genus of flowering plants in the family Rhamnaceae, native to Chile, Peru, and Argentina. The species in this genus are actinorhizal plants.

Trevoa is a genus of actinorhizal plants; these dicotyledon flora are trees or small shrubs. The genus was first proposed by Miers in 1825, but was not fully described until 1830 by Sir William Jackson Hooker. Genus members are notable for their ability to fix nitrogen. Species of this genus are generally found in the near coastal forests and arid shrubland of South America. Some species are localized in the mountains of central Chile; for example, the species Trevoa trinervis occurs in the La Campana National Park and other proximate areas of central Chile.

Crumenaria is a genus of flowering plants belonging to the family Rhamnaceae.

Polianthion is a genus of plants in the Rhamnaceae family, first described by Kevin R. Thiele in 2006. The genus name derives from the Greek polios (grey) and anthion (little flower), and describes the small, densely grey-pubescent flowers.

Blackallia is a genus of flowering plants belonging to the family Rhamnaceae.

Helinus is a genus of flowering plants in the family Rhamnaceae. They are native to tropical and subtropical regions of Africa and Asia, and may be trees, climbing shrubs or lianas. They are unarmed and the branches have coiled tendrils. The alternate leaves have entire margins, and pinnately arranged venation.

Krugiodendron ferreum, commonly known as the black ironwood or leadwood, is a species of tree in the family Rhamnaceae. It is found in southern Florida, throughout the Caribbean and from southern Mexico to Honduras. Originally described by Martin Vahl, its specific epithet is the Latin adjective ferreus ("iron-like").

Alvimiantha is a genus of flowering plants belonging to the family Rhamnaceae.

thumb|Foliage Siegfriedia is a monotypic genus flowering plant belonging to the family Rhamnaceae. It is a small plant with smooth leaves leaves and bell-shaped flowers. The only species is Siegfriedia darwinioides, it is endemic to Western Australia.

Schistocarpaea is a monotypic genus of flowering plants belonging to the family Rhamnaceae. The only species is Schistocarpaea johnsonii. Its native range is Queensland.

Kentrothamnus is a monotypic genus of flowering plants in the family Rhamnaceae, native to Bolivia and Argentina. The only species is Kentrothamnus weddellianus. It is an actinorhizal plant.

Reissekia is a monotypic genus of flowering plants belonging to the family Rhamnaceae. It only contains one known species, Reissekia smilacina (Sm.) Steud.

Noltea is a monotypic genus of flowering plants. The single species, Noltea africana (commonly known as the soap bush or soap dogwood), is a small, bushy tree of about 4 metres that is endemic to the southern Cape of South Africa, where it grows beside rivers and in pockets of afro-montane forest. It has small, white, mildly fragrant flowers and when it grows larger it assumes a willow shape, with slightly weeping branches. The leaves are long and serrated and the young growth is purple in colour.

Sarcomphalus is a genus of plants in the family Rhamnaceae.

Maesopsis eminii, the umbrella tree, is a species of tree in the family Rhamnaceae found in India and Africa. It is the only species in the genus Maesopsis. It is often grown as a plantation tree, and as a shade tree in coffee plantations and other crops. Birds and monkeys may disperse the seeds. Since this tree grows fast it is often used for regeneration of destroyed forest lands. Its timber is used for construction and firewood and its leaves for animal fodder.

Doerpfeldia is a monotypic genus of flowering plants belonging to the family Rhamnaceae. The only species is Doerpfeldia cubensis.