Conostylis crassinerva

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Conostylis crassinerva
Conostylis crassinerva.jpg
Subspecies absens near Jurien Bay
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Commelinales
Family: Haemodoraceae
Genus: Conostylis
Species:
C. crassinerva
Binomial name
Conostylis crassinerva
Conostylis crassinerva DistMap.png
Occurrence data from AVH

Conostylis crassinerva is a rhizomatous, tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the south-west of Western Australia. It has flat leaves and yellow tubular flowers that turn reddish as they age.

Contents

Description

Conostylis crassinerva is a rhizomatous, tufted, perennial, grass-like plant or herb up to 15 cm (5.9 in) in diameter. The leaves are flat, 70–180 mm (2.8–7.1 in) long and 1–3 mm (0.039–0.118 in) wide and glabrous or with soft, feather-like hairs. The flowers are arranged in head-like clusters with many flowers on a flowering stalk 40–125 mm (1.6–4.9 in) long with leaf-like bracts at the base of each flower and 4, shorter bracts at the base of the inflorescence. The perianth is yellow, turning reddish as it ages, 7–12 mm (0.28–0.47 in) long with loosely woolly hairs on the outside and shortly woolly-hairy inside. The anthers are about 1 mm (0.039 in) long and the style 5.5–10 mm (0.22–0.39 in) long. [2] [3]

Taxonomy and naming

Conostylis crassinerva was first formally described in 1961 by John Green in the Proceedings of the Linnean Society of New South Wales from a specimen collected on the top of Mount Lesueur. [3] [4] The specific epithet (crassinervia) means "thick-nerved". [5]

In 1987, Stephen Hopper described two subspecies of C. crassinervia and the names are accepted by the Australian Plant Census:

Distribution and habitat

Subspecies absens is common in heath between the Moore River and the Arrowsmith River in the Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain [7] [10] and subsp. crassinervia is common in heaths between Eneabba and Mount Lesueur in the Geraldton Sandplains and Swan Coastal Plain bioregions of south-western Western Australia. [9] [11]

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References

  1. "Conostylis crassinervia". Australian Plant Census. Retrieved 15 November 2021.
  2. Hopper, S.D; Purdie, R.W; George, A.S; Patrick, S.J. "Conostylis crassinervia". Australian Biological Resources Study, Department of Agriculture, Water and the Environment. Retrieved 13 November 2023.
  3. 1 2 Green, John W. (1961). "The Genus Conostylis R.Br. II. Taxonomy". Proceedings of the Linnean Society of New South Wales. 85 (3): 321–362. Retrieved 14 November 2023.
  4. "Conostylis crassinerva". APNI. Retrieved 14 November 2023.
  5. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 172. ISBN   9780958034180.
  6. "Conostylis crassinervia subsp. absens". Australian Plant Census. Retrieved 15 November 2021.
  7. 1 2 Hopper, S.D; Purdie, R.W; George, A.S; Patrick, S.J. "Conostylis crassinervia subsp. absens". Australian Biological Resources Study, Department of Agriculture, Water and the Environment. Retrieved 15 November 2023.
  8. "Conostylis crassinerva subsp. crassinervia". Australian Plant Census. Retrieved 15 November 2021.
  9. 1 2 Hopper, S.D; Purdie, R.W; George, A.S; Patrick, S.J. "Conostylis crassinervia subsp. crassinervia". Australian Biological Resources Study, Department of Agriculture, Water and the Environment. Retrieved 15 November 2023.
  10. "Conostylis crassinervia subsp. absens". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  11. "Conostylis crassinervia subsp. crassinervia". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.