Cussonia

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Cabbage trees
Cussonia paniculata kz1.JPG
Cussonia paniculata
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Araliaceae
Subfamily: Aralioideae
Genus: Cussonia
Thunb.
Species

See text

Synonyms

Cussonia is a genus of plants of the family Araliaceae, which is native to the Afrotropics. It originated in Africa and has its center of distribution in South Africa and the Mascarene Islands. Due to their striking habit, they are a conspicuous and easily recognizable group of plants. Their genus name commemorates the botanist Pierre Cusson. [1] The Afro-Malagasy and Asian Schefflera , and Afrotropical Seemannaralia genera are related taxa that share several of its morphological characteristics, among which the leaves borne on the end of branches, inflorescences carried on terminal branches or stems, and reduced leaf complexity in developing inflorescences. [2]

Contents

Range and habitat

They occur in grasslands, woodlands and forests, from sea level to over 2,000 metres in altitude. Geographically, they are indigenous to sub-Saharan Africa, Yemen in the Arabian Peninsula and the Comoro Islands. [2]

Habit and morphology

They are squat to lanky shrubs and trees with a palm-like habit. Their leaves are typically grouped in umbrella-shaped arrangements at the tips of long erect branches. The leaves are carried on long petioles, and have conspicuous stipules. The leaves are very variable in shape, often palmately compound (cf. subgenus PaniculataStrey) [2] with leaflets likewise variable in shape, but also simple or palmate. Their usually dense inflorescences are often spiked, and their small flowers usually have 5 greenish petals. [3] Their stems and underground parts are succulent, [2] and their bark is often corky. [4] These plants are best grown from seed. These plants can handle an occasional and mild frost, but a chill will make the leaves fall off. [5]

Species

There are some 20 to 22 species: [2] [6]

Related Research Articles

<span class="mw-page-title-main">Araliaceae</span> Family of flowering plants

The Araliaceae are a family of flowering plants composed of about 43 genera and around 1500 species consisting of primarily woody plants and some herbaceous plants. The morphology of Araliaceae varies widely, but it is predominantly distinguishable based on its woody habit, tropical distribution, and the presence of simple umbels.

<i>Indigofera</i> Genus of plants

Indigofera is a large genus of over 750 species of flowering plants belonging to the pea family Fabaceae. They are widely distributed throughout the tropical and subtropical regions of the world.

<i>Heliophila</i> Genus of flowering plants

Heliophila is a genus of flowering plants in the family Brassicaceae. Members of this genus are either annuals or perennials and some are popular as ornamental plants. Endemic to southern Africa, the majority of the approximately 80 species grow in South Africa, particularly the Cape Floristic Region, while a few extend into the Namib Desert.

<i>Seemannaralia</i> Genus of flowering plants

Seemannaralia gerrardii, commonly known as the wild-maple or mock carrot tree, is a species of flowering plant in the family Araliaceae. It is the sole member of genus Seemannaralia, and is endemic to South Africa, where it occurs in the Eastern Cape, KwaZulu-Natal, Limpopo and Mpumalanga provinces. It was originally included in genus Cussonia. Seemann- and gerrardii commemorate Berthold Seemann and William Gerrard respectively, while -aralia suggests the family or its type genus, Aralia.

<i>Wachendorfia</i> Genus of flowering plants

Wachendorfia is a genus of perennial herbaceous plants that is assigned to the bloodroot family. The plants have a perennial rootstock with red sap. From the rootstock emerge lance- or line-shaped, sometime sickle-shaped, pleated, simple leaves set in a fan, that are flattened to create a left and right surface rather than an upper and lower surface. The leaves die when the seeds are shed in three of the species, and are perennial in one species. The rootstock also produces flowering stems annually that carry a panicle of zygomorphic, yellow or yellowish flowers in two distinct forms, one with the style and one stamen bent to the right and two stamens to the left, and vice versa. The fruit opens with three valves and each contains a single, hairy seed. All species only occur in the fynbos biome in the Cape provinces of South Africa.

<i>Lotononis</i> Genus of legumes

Lotononis is a genus of flowering plants in the family Fabaceae and the tribe Crotalarieae. Almost all of the species in the genus occur in southern Africa.

<i>Melolobium</i> Genus of legumes

Melolobium is a genus of 15 species of flowering plants belonging to the family Fabaceae. It is native to southern Africa, where it is found in south and east Namibia, southwest Botswana, and most of South Africa.

<i>Phylica</i> Genus of flowering plants

Phylica is a genus of plants in the family Rhamnaceae. It contains about 150 species, the majority of which are restricted to South Africa, where they form part of the fynbos. A few species occur in other parts of southern Africa, and on islands including Madagascar, the Mascarene Islands, Île Amsterdam, Saint Helena, Tristan da Cunha, and Gough Island. The oldest fossils of the genus are of Phylica piloburmensis from the Burmese amber of Myanmar, dating to around 99 million years ago during the mid-Cretaceous.

<i>Aspalathus</i> Genus of legumes

Aspalathus is a genus of flowering plants in the family Fabaceae. The yellow flowers and spiny habit of some species have suggested a resemblance to Ulex europaeus, the thorny "English gorse" Accordingly, "Cape Gorse" has been proposed as a common name although the resemblance is largely superficial; for instance, gorse is thorny, whereas Aspalathus species are variously spiny or unarmed. The genus belongs to the subfamily Faboideae. There are over 270 species, mainly endemic to southwestern fynbos regions in South Africa, with over fifty occurring on the Cape Peninsula alone. The species Aspalathus linearis is commercially important, being farmed as the source of Rooibos tea.

Acrosanthes is a genus of flowering plants in the family Aizoaceae. It is native to Southern Africa.

References

  1. Gavhi, Peter; Harris, Shireen; Reynolds, Yvonne (October 2002). "Cussonia paniculata Eckl. & Zeyh". PlantZAfrica.com. SANBI. Retrieved 25 April 2017.
  2. 1 2 3 4 5 de Villiers, Bernard J.; Tilney, Patricia M.; van Wyk, Ben-Erik (2010). "The taxonomic significance of leaf anatomical characters in Cussonia and related genera (Araliaceae)" (PDF). Botanical Journal of the Linnean Society (164): 246–263. doi: 10.1111/j.1095-8339.2010.01085.x . Retrieved 25 April 2017.
  3. Hyde, M.; et al. "Cussonia". Flora of Zimbabwe. zimbabweflora.co.zw. Retrieved 25 April 2017.
  4. Thomas, Val; Grant, Rina; van Gogh, Joan (2004). Sappi tree spotting: Kwazulu-Natal and Eastern Cape. Johannesburg: Jacana. pp. 78–79. ISBN   9781770090385.
  5. "Araliaceae". succulent-plant.com. Retrieved 2018-02-07.
  6. "Cussonia". The Plant List, Version 1.1. 2013. Retrieved 25 April 2017.