| Isopogon robustus | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Isopogon |
| Species: | I. robustus |
| Binomial name | |
| Isopogon robustus | |
Isopogon robustus, commonly known as robust coneflower, [2] is a plant in the family Proteaceae and is endemic to a restricted area in the southwest of Western Australia. It is a shrub with cylindrical leaves and oval heads of pink flowers.
Isopogon robustus is a shrub that typically grows to about 1.5 m (4 ft 11 in) high and 2 m (6 ft 7 in) wide with brownish branchlets. The leaves are cylindrical, up to 150 mm (5.9 in) long and 2.5–3.3 mm (0.098–0.130 in) wide and more or less sessile. The flowers are arranged in oval, sessile heads of about nineteen to twenty-five pink flowers, the heads about 38 mm (1.5 in) in diameter with egg-shaped involucral bracts at the base. Flowering occurs in October and the fruit is a hairy nut about 3–3.5 mm (0.12–0.14 in) long, fused in a spherical head 9–24 mm (0.35–0.94 in) in diameter. [3]
Isopogon robustus was first formally described in 2005 by Neil Gibson in the journal Muelleria from a manuscript prepared by Donald Bruce Foreman but not published before his death. [4] The specific epithet (robustus) is a reference to the thick leaves and large flowers of this isopogon. [3]
This isopogon grows on laterite but is only known from a population of about 120 plants in the Parker Range near Southern Cross in the south-west of Western Australia. [3]
Isopogon robustus is listed as "critically endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia). [2] [5]
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.
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.
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.
Isopogon adenanthoides, commonly known as the spider coneflower, is a 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.
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.
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.
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.
Isopogon axillaris is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with thick, linear to lance-shaped leaves with the narrower end towards the base and oval heads of pink or purple flowers.
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.
Isopogon buxifolius is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an upright shrub with egg-shaped to elliptic or oblong leaves and clustered spikes of pink flowers.
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.
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.
Petrophile aspera is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a low shrub with relatively long, cylindrical leaves often curled at the tip, and oval heads of scented pale pink to pale yellow or white flowers.
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.
Isopogon longifolius is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a shrub with simple, linear, or deeply divided leaves and sessile, spherical heads of silky-hairy, yellow flowers and spherical to oval cone.
Isopogon pruinosus is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a compact, spreading shrub with narrow egg-shaped leaves with the narrower end towards the base and spherical to elliptic heads of pink flowers.
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.
Isopogon villosus is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a tufted shrub with cylindrical leaves with twenty-five to thirty-two widely diverging lobes, and oval heads of cream-coloured to yellow flowers.
Isopogon gardneri is a plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a dense, prickly shrub with sharply-pointed, interlocking leaves and hairy, pale pink or yellow flowers.
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.
