Isopogon tridens

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Three-toothed coneflower
Isopogon tridens.jpg
Isopogon tridens in the ANBG
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Isopogon
Species:
I. tridens
Binomial name
Isopogon tridens
Synonyms [1]
  • Atylus tridens(Meisn.) Kuntze
  • Isopogon trilobus var. tridensMeisn.

Isopogon tridens, commonly known as the three-toothed coneflower, [2] is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a shrub with wedge-shaped leaves with two or three sharply-pointed teeth, and flattened-spherical heads of glabrous creamy white, sometimes purple flowers.

Contents

Description

Isopogon tridens is a shrub that typically grows to a height of 1–1.5 m (3 ft 3 in – 4 ft 11 in) and has hairy, pale reddish to greyish-brown branchlets. The leaves are wedge-shaped, 35–85 mm (1.4–3.3 in) long, with two or three sharply-pointed lobes or teeth near the tip. The flowers are arranged on the ends of branchlets in sessile, flattened-spherical heads 20–30 mm (0.79–1.18 in) in diameter with hairy, broadly egg-shaped involucral bracts at the base. The flowers are more or less glabrous, creamy white or rarely deep purple, and 22–28 mm (0.87–1.10 in) long. Flowering occurs from June to July and the fruit is a hairy nut, fused with others in a flattened-spherical head about 20 mm (0.79 in) in diameter. [2] [3]

Taxonomy

Three-toothed coneflower was first formally described in 1855 by Carl Meissner who gave it the name Isopogon trilobus var. tridens in Hooker's Journal of Botany and Kew Garden Miscellany from specimens collected by James Drummond. [4] [5] In 1868, Ferdinand von Mueller changed the name to Isopogon tridens in Fragmenta phytographiae Australiae . [6] [7]

Distribution and habitat

Isopogon tridens usually grows in shrubland or heath and in a small area from near the Arrowsmith River to Eneabba in the Geraldton Sandplains biogeographic region in the south-west of Western Australia. [2] [3]

Conservation status

This isopogon is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife. [2]

Related Research Articles

<i>Isopogon</i> Genus of flowering plants

Isopogon, commonly known as conesticks, conebushes or coneflowers, is a genus of about forty species of flowering plants in the family Proteaceae, and are endemic to Australia. They are shrubs with rigid leaves, bisexual flowers in a dense spike or "cone" and the fruit is a small, hairy nut.

<i>Isopogon formosus</i> Species of shrub endemic to areas in Western Australia

Isopogon formosus, commonly known as rose coneflower, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with divided leaves with cylindrical segments, and spherical to oval heads of pink or red flowers.

<i>Isopogon cuneatus</i> Species of shrub endemic to an area around Albany in Western Australia

Isopogon cuneatus, commonly known as coneflower, is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with oblong to egg-shaped leaves with the narrower end towards the base, and flattened-spherical heads of glabrous pale to purplish pink flowers.

<i>Isopogon dubius</i> Species of shrub endemic to the southwest of Western Australia

Isopogon dubius, commonly known as pincushion coneflower, is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with sharply-pointed, deeply lobed or pinnate leaves and more or less spherical heads of pink to reddish pink flowers.

<i>Isopogon adenanthoides</i> Species of shrub endemic to the south-west of Western Australia

Isopogon adenanthoides, commonly known as the spider coneflower, is species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is an erect shrub with sharply-pointed, trifid leaves and spherical heads of pink flowers.

<i>Isopogon trilobus</i> Species of shrub that is endemic to south coastal regions of Western Australia


Isopogon trilobus, commonly known as barrel coneflower, is a species of flowering plant in the family Proteaceae and is endemic to South Coast Western Australia. It is a shrub with wedge-shaped leaves with lobed or toothed leaves, and oval, spherical or barrel-shaped heads of cream-coloured to yellow flowers.

<i>Isopogon asper</i> Species of shrub endemic to southwest Western Australia

Isopogon asper is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a low shrub with crowded pinnate leaves and flattened spherical heads of glabrous pink flowers.

<i>Isopogon alcicornis</i> Species of shrub that is endemic to the south coast of Western Australia

Isopogon alcicornis, commonly known as the elkhorn coneflower, is a plant in the family Proteaceae and is endemic to part of the South Coast Western Australia. It is a low shrub with pinnately-lobed leaves and oval heads of hairy, white or pink flowers.

<i>Isopogon attenuatus</i> Species of shrub endemic to the southwest of Western Australia

Isopogon attenuatus is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with oblong to spatula-shaped or linear leaves and spherical heads of yellow flowers.

<i>Isopogon baxteri</i> Species of shrub endemic to the southwest of Western Australia

Isopogon baxteri, commonly known as the Stirling Range coneflower, is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect shrub with wedge-shaped, often 3-lobed, toothed leaves and flattened spherical heads of hairy pink flowers.

<i>Isopogon divergens</i> Species of shrub endemic to the southwest of Western Australia

Isopogon divergens, commonly known as spreading coneflower, is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with pinnate leaves and more or less spherical heads of glabrous pink flowers followed by an oval to cylindrical fruiting cone.

<i>Isopogon teretifolius</i> Species of shrub of the family Proteaceae endemic to the southwest of Western Australia

Isopogon teretifolius, commonly known as nodding coneflower, is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is an erect shrub with cylindrical, sometimes branched leaves, and flattened-spherical heads of hairy pinkish flowers.

<i>Isopogon polycephalus</i> Species of shrub of the family Proteaceae endemic to southern Western Australia

Isopogon polycephalus, commonly known as clustered coneflower, is a species of plant in the family Proteaceae and is endemic to the South coast of Western Australia. It is a spreading shrub with linear to lance-shaped leaves with the narrower end towards the base, and clusters of more or less spherical heads of white, cream-coloured or yellow flowers.

<i>Petrophile megalostegia</i> Species of shrub endemic to Western Australia

Petrophile megalostegia is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with needle-shaped or flattened, sometimes S-shaped leaves with a sharply-pointed tip, and more or less cylindrical heads of silky-hairy, yellow to cream-coloured flowers.

<i>Petrophile plumosa</i> Species of shrub endemic to Western Australia

Petrophile plumosa is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with rigid, sharply-pointed, sometimes lobed leaves, and more or less spherical heads of hairy, pale yellow flowers.

<i>Isopogon crithmifolius</i> Species of shrub of the family Proteaceae endemic to the southwest of Western Australia

Isopogon crithmifolius is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with divided leaves and more or less spherical heads of glabrous reddish pink flowers.

<i>Isopogon scabriusculus</i> Species of shrub in the family Proteaceae that is endemic to southwestern Western Australia

Isopogon scabriusculus is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with cylindrical, or narrow flat, sometimes forked leaves, and spherical to oval heads of pink or red flowers.

<i>Isopogon heterophyllus</i> Species of shrub

Isopogon heterophyllus is a plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a shrub with simple or pinnate, cylindrical leaves and hairy, usually pink flowers.

<i>Isopogon inconspicuus</i> Species of shrub

Isopogon inconspicuus is a plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a small shrub with pinnate leaves with cylindrical leaflets, and pink to purple flowers covered with grey hairs.

Petrophile multisecta, commonly known as Kangaroo Island conesticks, is a species of flowering plant in the family Proteaceae and is endemic to Kangaroo Island in South Australia. It is a prickly shrub with rigid, much-divided leaves with sharply pointed tips, oval to spherical heads of hairy cream-coloured flowers and oval fruit.

References

  1. 1 2 "Isopogon tridens". Australian Plant Census. Retrieved 29 November 2020.
  2. 1 2 3 4 "Isopogon tridens". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 Foreman, David B. "Isopogon tridens". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 29 November 2020.
  4. "Isopogon trilobus var. tridens". APNI. Retrieved 29 November 2020.
  5. Meissner, Carl (1855). "New Proteaceae of Australia". Hooker's Journal of Botany and Kew Gardens Miscellany. 7: 70. Retrieved 29 November 2020.
  6. "Isopogon tridens". APNI. Retrieved 29 November 2020.
  7. von Mueller, Ferdinand (1868). Fragmenta phytographiae Australiae. Vol. 6. Melbourne: Victorian Government Printer. p. 239. Retrieved 29 November 2020.