Conostylis dielsii

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Conostylis dielsii
Conostylis dielsii.jpg
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. dielsii
Binomial name
Conostylis dielsii
Conostylis dielsiiDistMap17.png
Occurrence data from AVH
Synonyms [1]

Conostylis psammophilaDiels nom. inval., pro syn.

Conostylis dielsii is a tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the south-west of Western Australia. It forms short rhizomes, and has cylindrical leaves and creamy-yellow flowers.

Contents

Description

Conostylis dielsii is a tufted perennial, grass-like plant or herb that forms short rhizomes and typically grows to 13–33 cm (5.1–13.0 in) high. The leaves are round in cross-section, 7–330 mm (0.28–12.99 in) long and 0.5–1.8 mm (0.020–0.071 in) wide and glabrous, apart from woolly hairs at the base. The flowers are arranged in dense cymes or heads on a hairy flowering stalk 40–100 mm (1.6–3.9 in) long with leaf-like bracts 6–15 mm (0.24–0.59 in) long. The perianth is creamy-yellow, 7.5–10 mm (0.30–0.39 in) long with lobes 4–6 mm (0.16–0.24 in) long. The anthers are 2.5–4 mm (0.098–0.157 in) long and the style 6.0–8.5 mm (0.24–0.33 in) long. Flowering occurs in July and August. [2] [3]

Taxonomy and naming

Conostylis dielsii was first formally described in 1903 by William Vincent Fitzgerald in the Journal of the Proceedings of the Mueller Botany Society of Western Australia from a specimen collected near Mingenew by Ludwig Diels. [4] [5] The specific epithet (dielsii) honours the collector of the type specimens. [6]

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

Distribution and habitat

This species of conostylis grows in low open woodland in sand and gravel between Mingenew, Walkaway and the Arrowsmith River in the Avon Wheatbelt and Geraldton Sandplains bioregions of south-western Western Australia. [2] [3] Subspecies teres grows in heath and low open woodland and is restricted to uplands inland from Walkaway in the Geraldton Sandplains bioregion. [10] [11]

Conservation status

Conostylis dielsii is listed as "not threatened" [3] but subsp. teres is listed as Threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, [11] meaning that it is in danger of extinction. [12]

Related Research Articles

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Conostylis setigera, commonly known as bristly cottonhead, is a rhizomatous, tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the south-west of Western Australia.

<i>Conostylis albescens</i> Species of flowering plant

Conostylis albescens is a rhizomatous, tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to inland areas of Western Australia. It is similar to Conostylis bealiana has hairy leaves and yellowish-cream to white tubular flowers.

<i>Conostylis canteriata</i> Species of flowering plant

Conostylis canteriata 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 stilted roots, flat leaves, and pale lemon-yellow tubular flowers.

<i>Conostylis caricina</i> Species of flowering plant

Conostylis caricina is a flowering plant in the family Haemodoraceae and is endemic to the south-west of Western Australia. It is a rhizomatous, tufted perennial, grass-like plant or herb with flat leaves and heads of 6 to 8 creamy-yellow flowers.

<i>Conostylis crassinerva</i> Species of flowering plant

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.

<i>Conostylis festucacea</i> Species of flowering plant

Conostylis festucacea is a rhizomatous, tufted or proliferous perennial, grass-like plant or herb in the family Haemodoraceae, and is endemic to the south-west of Western Australia. It has cylindrical or flat leaves and yellow flowers.

<i>Conostylis hiemalis</i> Species of flowering plant

Conostylis hiemalis 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, usually with woolly grey hairs at the base, and pale yellow to cream-coloured, tubular flowers.

Conostylis latens 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, green, usually hairy leaves, and greenish-yellow, tubular flowers.

Conostylis micrantha, commonly known as small-flowered conostylis, 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 leaves that are round in cross-section and have bristles or hairs on the lower edges, and pale yellowish cream, tubular flowers.

Conostylis neocymosa 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, green leaves with bristles on the edges, and yellow, tubular flowers.

Conostylis pauciflora, commonly known as Dawesville conostylis, is a rhizomatous, 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 relatively few tubular flowers.

<i>Conostylis prolifera</i> Species of flowering plant

Conostylis prolifera, commonly known as mat cottonheads, 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, glabrous leaves, and yellow and cream-coloured, tubular flowers.

Conostylis resinosa 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, shiny leaves, yellow, tubular flowers and is similar to C. aurea.

<i>Conostylis robusta</i> Species of flowering plant

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.

<i>Conostylis seminuda</i> Species of flowering plant

Conostylis seminuda is a rhizomatous, tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to a small area in the south-west of Western Australia. It has flat leaves and golden yellow, tubular flowers.

<i>Conostylis seorsiflora</i> Species of flowering plant

Conostylis seorsiflora is a rhizomatous, tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the south of Western Australia. It has flat leaves and yellow, tubular flowers.

<i>Conostylis stylidioides</i> Species of flowering plant

Conostylis stylidioides is a rhizomatous, stoloniferous, perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the west of Western Australia. It has flat leaves and yellow, tube-shaped flowers.

<i>Conostylis teretifolia</i> Species of flowering plant

Conostylis teretifolia 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, short stems and yellow to reddish, tube-shaped flowers.

<i>Conostylis teretiuscula</i> Species of flowering plant

Conostylis teretiuscula 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, tube-shaped flowers.

Conostylis tomentosa 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 with bristles of hairs on the leaf margins, and golden yellow, tubular flowers.

References

  1. 1 2 "Conostylis dielsii". Australian Plant Census. Retrieved 21 November 2021.
  2. 1 2 Hopper, S.D; Purdie, R.W; George, A.S; Patrick, S.J. "Conostylis dielsii". Australian Biological Resources Study, Department of Agriculture, Water and the Environment. Retrieved 21 November 2023.
  3. 1 2 3 "Conostylis dielsii". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Conostylis dielsii". APNI. Retrieved 21 November 2023.
  5. ↑ Fitzgerald, William Vincent (1903). "Notes on some new species of West Australian plants". Journal and Proceedings of the Mueller Botany Society of Western Australia. 1 (11): 82. Retrieved 22 November 2023.
  6. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 183. ISBN   9780958034180.
  7. ↑ "Conostylis dielsii subsp. dielsii". Australian Plant Census. Retrieved 21 November 2021.
  8. ↑ Hopper, S.D; Purdie, R.W; George, A.S; Patrick, S.J. "Conostylis dielsii subsp. dielsii". Australian Biological Resources Study, Department of Agriculture, Water and the Environment. Retrieved 21 November 2023.
  9. ↑ "Conostylis dielsii subsp. teres". Australian Plant Census. Retrieved 21 November 2021.
  10. 1 2 Hopper, S.D; Purdie, R.W; George, A.S; Patrick, S.J. "Conostylis dielsii subsp. teres". Australian Biological Resources Study, Department of Agriculture, Water and the Environment. Retrieved 21 November 2023.
  11. 1 2 "Conostylis dielsii subsp. teres". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  12. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 21 November 2023.
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