Conostylis robusta is a rhizomatous, tufted, stoloniferous, perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the south-west of Western Australia. It has flat, green leaves with bristles on the edges, and heads of yellow flowers on a relatively long flowering stem.

Conostylis robusta
In the Australian National Botanic Gardens
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Commelinales
Family: Haemodoraceae
Genus: Conostylis
Species:
C. robusta
Binomial name
Conostylis robusta

Description

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Conostylis robusta is a rhizomatous, tufted, stoloniferous perennial grass-like plant or herb forming clumps 300 cm (120 in) wide and up to 60 cm (24 in) high. The leaves are flat, bluish-green and faintly glaucous, 80–340 mm (3.1–13.4 in) long and 2–12 mm (0.079–0.472 in) wide. The flower stem is green, 190–420 mm (7.5–16.5 in) long and usually longer than the leaves. The perianth is yellow and hairy, 5–12 mm (0.20–0.47 in) long with six more or less equal tepals and six stamens, the filaments 0.5–1 mm (0.020–0.039 in) long and the anthers 4.5–5.0 mm (0.18–0.20 in) long. Flowering occurs in August and September. This species is similar to C. aculeata.[2][3][4]

Taxonomy and naming

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Conostylis robusta was first formally described in 1904 by Ludwig Diels in Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie, from specimens he collected near the Chapman River.[5] The specific epithet (robusta) means "robust".[6][7]

Distribution and habitat

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This species of conostylis grows in heath and scrub between the Mingenew-Walkaway area, Eradu and Kalbarri National Park in the Avon Wheatbelt and Geraldton Sandplains bioregions of south-western Western Australia.

Conservation status

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Conostylis robusta is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[2]

References

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  1. ^ "Conostylis pauciflora". Australian Plant Census. Retrieved 25 January 2023.
  2. ^ a b "Conostylis robusta". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. ^ Hopper, S.D; Purdie, R.W; George, A.S; Patrick, S.J. "Conostylis pauciflora" (PDF). Australian Biological Resources Study, Department of Agriculture, Water and the Environment. p. 80. Retrieved 25 January 2024.
  4. ^ Hopper, S.D; Purdie, R.W; George, A.S; Patrick, S.J. "Conostylis robusta". Australian Biological Resources Study, Department of Agriculture, Water and the Environment. Retrieved 25 January 2024.
  5. ^ "Conostylis robusta". APNI. Retrieved 25 January 2023.
  6. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 296. ISBN 9780958034180.
  7. ^ Diels, Ludwig (1904). Pritzel, Ernst Georg (ed.). "Fragmenta Phytographiae Australiae occidentalis. Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse". Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. 35 (1): 109. Retrieved 25 January 2024.