Ridged noon-flower

Priority Three — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Aizoaceae
Genus: Sarcozona
Species:
S. bicarinata
Binomial name
Sarcozona bicarinata

Sarcozona bicarinata, commonly known as ridged noon-flower,[2] is species of flowering plant in the family Aizoaceae and is endemic to Australia. It is a small shrub with leaves that are triangular in cross-section and arranged in opposite pairs, and daisy-like flowers with twenty to fifty-five petal-like staminodes and twenty to fifty stamens.

Description

Sarcozona bicarinata is an erect, succulent glabrous shrub that typically grows to a height of 10 cm (3.9 in) with sessile leaves arranged in opposite pairs, stem-clasping, 25–50 mm (0.98–1.97 in) long and 5–9 mm (0.20–0.35 in) wide. The leaves are triangular in cross-section but with the sides rounded and the top flat, the edges tinged with pink. The flowers are arranged singly or in pairs with two leaves fused together and partly enclosing the flowers. The sepal tube is bell-shaped or cup-shaped 4.5–9 mm (0.18–0.35 in) long with four or five lobes, and there are between twenty and fifty-five petal-like staminodes surrounding between twenty and fifty white stamens and five styles. The ovary is 4.5–9 mm (0.18–0.35 in) long and has two characteristic ribs. Flowering occurs from August to December and the fruit is a succulent capsule 7–15 mm (0.28–0.59 in) long.[3][4][2][5][6]

Taxonomy

Sarcozona bicarinata was first formally described in 1969 by Stanley Thatcher Blake in Contributions from the Queensland Herbarium from specimens collected by R.L. Specht near Lock in South Australia.[6][7]

Distribution

Ridged noon-flower occurs on the Yorke and Eyre Peninsulas and there are records from the Swan Coastal Plain biogeographic region in Western Australia.[4][5]

Conservation status

This species is classified as in Western Australia as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife[3] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[8]

References

  1. ↑ "Sarcozona bicarinata". Australian Plant Census. Retrieved 18 October 2020.
  2. 1 2 "Sarcozona bicarinata". State Herbarium of South Australia. Retrieved 18 October 2020.
  3. 1 2 "Sarcozona". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 1 2 "Sarcozona bicarinata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. 1 2 Venning, Julieanne. "Sarcozona bicarinata". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 18 October 2020.
  6. 1 2 Blake, Stanley Thatcher (1969). "A revision of Carpobrotus and Sarcozona in Australia, genera allied to Mesembryanthemum (Aizoaceae)". Contributions from the Queensland Herbarium. 7: 37–39.
  7. ↑ "Sarcozona bicarinata". APNI. Retrieved 18 October 2020.
  8. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 18 October 2020.
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