Athanasia grandiceps

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Athanasia grandiceps
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Athanasia
Species:
A. grandiceps
Binomial name
Athanasia grandiceps
Hilliard & B.L.Burtt

Athanasia grandiceps is a species of plant from South Africa. It belongs to the daisy family.

Contents

Description

This sparsely branched shrub grows 50–150 cm (1.6–4.9 ft) tall. [1] Plants will often have many tufted secondary shoots. The hairs are long and simple. [1] The leaves grow directly on the stems and do not have a stalk. The deeply pinnatifid (cleft nearly to the midrib, not quite dividing into individual leaflets) or bipinnatifid leaves have long, narrow lobes. The upper leaves are often entire with long, simple hairs. [1]

Flowers are present in May. The flowers are borne in long-stalked disc-shaped dense, flat clusters. The stalk is expanded and hollow at the top. The whorls of bracts surrounding the flowers are bell-shaped. The overlapping bracts are narrow and straw-coloured with margins that are fringed by hairs. The disc (inner) florets are yellow. [1] They are tubular below and bell-shaped above and have scattered, long-stalked glands on the corolla tube. [1] [2] The florets do not have paleae (the upper bracts of grass florets). [2] The pappus (a feathery modified calyx) is absent. [1]

The fruit are cup-shaped and contain a single dry seed. [1] [2] It has ten to twelve ribs, although twelve ribs are most common. [1] [2] It has a minute rim at the top. [2]

Distribution and habitat

While most of the species in this genus are found in the south-west parts of South Africa, this species is endemic to KwaZulu-Natal. [2] [3] It grows on afro-alpine grassland slopes on the Drakensberg Mountains, where it has an area of occurrence of less than 100 km2 (39 sq mi). [1] [3]

Conservation

This species is considered to be rare by the South African National Biodiversity Institute. While the population is stable, it is a highly range restricted species known from only three sites. [3]

Related Research Articles

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Mairia robusta is a tufted, white-woolly, perennial, herbaceous plant of up to 30 cm (1 ft) high, that is assigned to the family Asteraceae. It has large, robust, hard and leathery leaves, with a white woolly hairy, nontransparent underside, while the felty hairs on the top are lost with age. Only at a few occasions, flowers have been observed, in June, October and December, always after a fire. The flower heads sit individually at the tip of white-woolly scapes, with 14–16 purplish pink to white ray florets surrounding a yellow disc. M. robusta is an endemic species that is restricted to rocky mountain slopes in the Western Cape province of South Africa.

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<i>Felicia mossamedensis</i> A plant in the daisy family from southern Africa

Felicia mossamedensis or yellow felicia is a well-branched, roughly hairy, annual or perennial plant of up to 30 cm (1 ft) high, assigned to the family Asteraceae. It has alternately arranged, seated, flat to slightly succulent, broad-based, entire, blunt tipped leaves. The flower heads sit individually on top of a stalk of up to 8 cm (3 in) long, have an involucre of three whorls of bracts, many yellow ray florets and many yellow disk florets. It can be found in southern Africa, in Zimbabwe, Mozambique, Botswana, Eswatini, South Africa and on the coast of Angola.

Olearia adenolasia, commonly known as woolly-glandular daisy-bush, is a species of flowering plant in the family Asteraceae. It is a small upright shrub with sticky leaves and blue-purple or white daisy flowers.

Dicoma swazilandica is a species of plant from Eswatini and South Africa.

Osteospermum burttianum is a species of plant from South Africa.

References

  1. 1 2 3 4 5 6 7 8 9 e-Flora of South Africa. v1.36. 2022. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.36
  2. 1 2 3 4 5 6 Källersjö, Mari (1985). "Fruit structure and generic delimitation of Athanasia (Asteraceae-Anthemideae) and related South African genera". Nordic Journal of Botany. 5 (6): 527–542. doi:10.1111/j.1756-1051.1985.tb01690.x. ISSN   0107-055X.
  3. 1 2 3 Herman, P.P.J. & Victor, J.E. 2006. Athanasia grandiceps Hilliard & B.L.Burtt. National Assessment: Red List of South African Plants version 2020.1. Accessed on 11 February 2023