Asparagus capensis

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Asparagus capensis
Asparagus capensis - Cape Town.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Asparagoideae
Genus: Asparagus
Species:
A. capensis
Binomial name
Asparagus capensis

Asparagus capensis, also called katdoring (from the Afrikaans for 'cat-thorn') is a dense, thorny, shrub of the Asparagus genus, that is indigenous to South Africa and Namibia.

Contents

Description

Asparagus capensis, foliage and flower. Asparagus capensis01.jpg
Asparagus capensis, foliage and flower.

This species of asparagus grows as a thorny bush, to a height of 1 metre. Stems are erect, often zig-zagged, and the stems and branches end in spines.

Each branch has many whorls of spreading shoots around it, making it bottle-brush shaped, and each shoot is tightly packed with tiny leaves.

The grey-green leaves are small (3-5mm), velvety, needle-shaped and often appear in sets of five.

The spines at the branch-nodes usually appear in sets of three - a longer central spine (max.30mm) and two lateral spines.

The tiny, white, strongly scented flowers are sessile (without stalks), and they appear from autumn to spring. [1]

This species is part of a group of closely related southern African Asparagus species, that are all small, erect shrubs with grouped spines (modified branch-tips) and compound tufts of leaves. Other species in this group include the widespread Asparagus suaveolens and Asparagus burchellii , the coastal Asparagus mariae of Agulhas, Asparagus flavicaulis and Asparagus spinescens . [2]

Distribution

Asparagus capensis growing wild in Cape Town 1 Asparagus capensis var. capensis - Kenwyn Nature Park Cape Town.jpg
Asparagus capensis growing wild in Cape Town

Its natural range is stony slopes throughout the Cape, from Namibia southwards to Cape Town and eastwards to the Eastern Cape. However, it is especially common in the western winter-rainfall regions. It tends to favour sandy soils and, although it occurs inland, it is most common near the coast.

Like many other Asparagus species, the young shoots of this plant are edible, and are eaten by local people. [3]

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Asparagus is a genus of flowering plants in the family Asparagaceae, subfamily Asparagoideae. It comprises up to 300 species. Most are evergreen long-lived perennial plants growing from the understory as lianas, bushes or climbing plants. The best-known species is the edible Asparagus officinalis, commonly referred to as just asparagus. Some other members of the genus, such as Asparagus densiflorus, are grown as ornamental plants.

<i>Leucospermum</i> Genus of shrubs in the family Proteaceae

Leucospermum is a genus of evergreen upright, sometimes creeping shrubs that is assigned to the Proteaceae, with currently forty-eight known species.

<i>Asparagus aethiopicus</i> Species of flowering plant

Asparagus aethiopicus, Sprenger's asparagus, is a plant native to the Cape Provinces and the Northern Provinces of South Africa. Often used as an ornamental plant, it is considered an invasive weed in many locations. Asparagus fern, asparagus grass and foxtail fern are common names; however, it is unrelated to true ferns. A. aethiopicus has been confused with A. densiflorus, now regarded as a separate species, so that information about A. aethiopicus will often be found under the name A. densiflorus.

<i>Tecomaria capensis</i> Species of flowering plant

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<i>Didelta</i> Plant genus in the Asteraceae from Southern Africa

Didelta is a genus of shrubs of up to 1 or 2 meter high, with two known species in the daisy family. Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, and are surrounded by an involucre, consisting of in this case two whorls of bracts, which are almost free from each other. The 3–5 outer bracts are protruding and triangular in shape, the inner about twice as many are lance-shaped and ascending. In Didelta, the centre of the head is taken by 3–5 clusters of bisexual yolk yellow disc florets, sometimes divided from each other by male disc florets, and is surrounded by one complete whorl of infertile yolk yellow ray florets. The common base of the flowerhead swells around the developing fruitlets, become woody and breaks into segments when ripe. The fruitlets germinate within this woody encasing. The species of the genus Didelta can be found in Namibia and South Africa. The genus is called salad thistle in English and slaaibos in Afrikaans.

<i>Brabejum</i> Monotypic genus of trees in the family Proteaceae from the Western Cape of South Africa

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<i>Aloiampelos</i> Genus of succulent flowering plants

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<i>Asparagus lignosus</i> Species of vine

Asparagus lignosus ("Katdoring") is a thorny, spindly creeper of the Asparagus genus, that is indigenous to the Western Cape Province of South Africa.

<i>Asparagus rubicundus</i> Species of shrub

Asparagus rubicundus is a fluffy, thorny shrub of the Asparagus genus, that is endemic to the Cape Provinces of South Africa.

<i>Dalbergia armata</i> Species of legume

Dalbergia armata is a scrambling, deciduous species of legume that is native to subtropical to temperate regions of southeastern Africa. The robust, woody liana or small tree is armed with strong spines on the main stem and branches. It occurs sparsely or commonly in forest, bush, riparian fringes and in wooded ravines. It is sometimes employed as a bonsai subject, and it can be propagated from either seed or cuttings.

<i>Mitrophyllum</i> Genus of succulents

Mitrophyllum is a genus of succulent plants of the family Aizoaceae, indigenous to the arid region around the Richtersveld, on the border of South Africa and Namibia.

<i>Tamarix usneoides</i> Species of shrub

Tamarix usneoides, locally known as wild tamarisk, is a twiggy shrub or small evergreen tree that grows in saline habitats, semi-deserts and karroid areas in southern Africa, ranging from Angola through Namibia to the Cape Provinces of South Africa. It has a short trunk, thin branches usually growing from ground level, tiny scale-like leaves and spikes of creamy-white flowers.

<i>Asparagus striatus</i> Species of shrub

Asparagus striatus ("Bergappel") is a hard perennial shrublet of the Asparagus genus, that is indigenous to dry, rocky areas of South Africa.

<i>Asparagus mucronatus</i> Species of shrub

Asparagus mucronatus ("Katdoring") is a thorny shrub or creeper of the Asparagus genus, that is indigenous to the southern Cape regions of South Africa.

Asparagus multiflorus is a robust shrub or climber of the Asparagus genus, that is indigenous to the southern Cape regions of South Africa.

<i>Asparagus krebsianus</i> Species of shrub

Asparagus krebsianus is a shrub of the Asparagus genus that is native to rocky areas in southern Africa. It ranges from central Malawi through Mozambique to the Northern Provinces, KwaZulu-Natal, and Cape Provinces of South Africa.

Asparagus burchellii, is a shrub of the Asparagus genus, that is indigenous to dry scrub vegetion in the southern Cape region, South Africa.

<i>Asparagus retrofractus</i> Species of shrub

Asparagus retrofractus is a shrub of the Asparagus genus that is indigenous to the western regions of South Africa.

<i>Asparagus suaveolens</i> Species of shrub

Asparagus suaveolens, is a shrub of the Asparagus genus, that is indigenous to rocky areas in Africa, from Kenya to South Africa.

<i>Felicia</i> (plant) Genus of shrublets, perennials and annuals in the daisy family

Felicia is a genus of small shrubs, perennial or annual herbaceous plants, with 85 known species, that is assigned to the daisy family. Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, and which are surrounded by an involucre of, in this case between two and four whorls of, bracts. In Felicia, the centre of the head is taken by yellow, seldom whitish or blackish blue disc florets, and is almost always surrounded by one single whorl of mostly purple, sometimes blue, pink, white or yellow ligulate florets and rarely ligulate florets are absent. These florets sit on a common base and are not individually subtended by a bract. Most species occur in the Cape Floristic Region, which is most probably the area where the genus originates and had most of its development. Some species can be found in the eastern half of Africa up to Sudan and the south-western Arabian peninsula, while on the west coast species can be found from the Cape to Angola and one species having outposts on the Cameroon-Nigeria border and central Nigeria. Some species of Felicia are cultivated as ornamentals and several hybrids have been developed for that purpose.

References

  1. Obermeyer, A.A. & Immelman, K.L, (1992). Flora of southern Africa, Volume 5, Part 3: 59, 60. National Botanical Institute, Pretoria.
  2. Maria F Norup, Gitte Petersen, Sandie Burrows, Yanis Bouchenak-Khelladi, Jim Leebens-Mack, J Chris Pires, H Peter Linder, Ole Seberg. (2015). Evolution of Asparagus L. (Asparagaceae): Out-of-South-Africa and multiple origins of sexual dimorphism. Molecular Phylogenetics and Evolution 92: 25-44.
  3. "Asparagus capensis".

Further reading