Grevillea incrassata | |
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In Frank Hann National Park | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Grevillea |
Species: | G. incrassata |
Binomial name | |
Grevillea incrassata | |
Grevillea incrassata is a species of flowering plant in the family Proteaceae and is endemic to inland south-western Western Australia. It is an erect shrub with crowded cylindrical or narrowly linear leaves and clusters of bright yellow flowers.
Grevillea inconspicua is an erect shrub that typically grows to a height of 0.3–2.3 m (1 ft 0 in – 7 ft 7 in) and has silky-hairy branchlets. The leaves are crowded and circular in cross-section or linear, 5–25 mm (0.20–0.98 in) long, 0.5–1.5 mm (0.020–0.059 in) wide and silky-hairy. The flowers are arranged in usually branched clusters 10–20 mm (0.39–0.79 in) long on the ends of branches and are bright yellow or golden yellow, the pistil about 7 mm (0.28 in) long. Flowering occurs from September to November and the fruit is a cylindrical to oval follicle 10–16 mm (0.39–0.63 in) long. [3] [4]
Grevillea incrassata was first formally described in 1904 by Ludwig Diels in Ernst Georg Pritzel's Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie . [5] [6] The specific epithet (incrassata) means "flattened", referring to the leaves. [7]
This grevillea grows in scrub mallee on sandplains between Narembeen, Southern Cross, Lake King and Peak Charles National Park in the Avon Wheatbelt, Coolgardie, Esperance Plains and Mallee bioregions of inland south-western Western Australia. [3] [4]
Grevillea incrassata is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions [3] but as Vulnerable on the IUCN Red List of Threatened Species. This is due to an estimated decline in population of 30% over the past three generational lengths due to land clearing for agriculture and competition with invasive weeds. [1]
The population is currently stable and occurs within multiple protected areas, though it is restricted to road verges within the Wheatbelt region. Here, it is threatened by verge clearance and weed invasion. [1]
Eucalyptus eremophila, commonly known as the sand mallet or tall sand mallee, is a species of mallet that is endemic to semi-arid regions of Western Australia. It has smooth pale brown and greyish bark, narrow lance-shaped to elliptical adult leaves, flower buds arranged in groups of between seven and eleven with an elongated operculum, and cup-shaped to barrel-shaped fruit.
Banksia purdieana is a species of bushy shrub that is endemic to Western Australia. It has broadly linear, pinnatipartite leaves with sharply-pointed lobes on the sides, yellow flowers in heads of about eighty and egg-shaped follicles.
Eucalyptus forrestiana, commonly known as fuchsia gum or fuchsia mallee, is a species of small tree or mallet and is endemic to an area near Esperance, Western Australia. It has smooth grey bark, narrow oblong to lance-shaped adult leaves, flower buds that are square in cross-section, red at maturity and arranged singly in leaf axils, yellow flowers and four-angled, winged fruit.
Grevillea excelsior, commonly known as flame grevillea or yellow flame grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect shrub or small tree with usually divided leaves with linear lobes, and clusters of orange flowers.
Grevillea asteriscosa, commonly known as star-leaf grevillea, 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 widely-spreading branches, star-shaped leaves with sharply-pointed lobes, and bright red flowers.
Eremophila georgei is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a common, widespread shrub in central areas of the state, often growing on rocky ridges and hillsides and has serrated leaves and mauve, purple or pink flowers.
Verticordia stenopetala is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a low shrub with small leaves and heads of pink to magenta-coloured flowers in late spring and early summer.
Grevillea eremophila is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect shrub with leathery, linear to narrowly egg-shaped leaves with the narrower end towards the base, and creamy-white flowers.
Grevillea inconspicua, commonly known as Cue grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the central-west of Western Australia. It is a prickly, densely-branched shrub with linear leaves and clusters of off-white to silvery grey flowers.
Grevillea incurva is a species of flowering plant in the family Proteaceae and is endemic to inland south-western Western Australia. It is an erect shrub with linear adult leaves and clusters of creamy-yellow flowers.
Grevillea oncogyne is a species of flowering plant in the family Proteaceae and is endemic to inland areas of Western Australia. It is an erect to spreading shrub with linear, sometimes lobed leaves, and clusters of red or pinkish red flowers.
Grevillea phanerophlebia, commonly known as the prominent vein grevillea and the vein leaf grevillea, is a species of flowering plant in the family Proteaceae and is endemic to a restricted part of the south-west of Western Australia. It is an erect, spreading or straggly shrub with divided leaves, the lobes linear, and white and cream-coloured to yellow flowers.
Grevillea uncinulata, also known as hook-leaf grevillea, is species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect, open shrub with linear to elliptic leaves arranged in clusters along the branches, and small clusters of white flowers, the style with a yellow, orange or red tip.
Hibbertia silvestris is a species of flowering plant in the family Dilleniaceae and is endemic to the south-west of Western Australia. It is a prostrate to more or less erect or spreading shrub with hairy young branchlets, elliptic to egg-shaped leaves with the narrower end towards the base and yellow flowers with seven to ten stamens on one side of two softly-hairy carpels.
Grevillea ceratocarpa is a species of flowering plant in the family Proteaceae and is endemic to inland areas of the south-west of Western Australia. It is an erect or spreading shrub with softly-hairy, narrowly elliptic or narrowly egg-shaped leaves with the narrower end towards the base, and creamy-white flowers.
Lasiopetalum microcardium is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is a low, spreading or straggling shrub with hairy stems, heart-shaped leaves and blue, purple or white flowers.
Styphelia dielsiana is a species of flowering plant in the heath family Ericaceae and is endemic to the south-west of Western Australia. It was first formally described in 1904 by Ernst Georg Pritzel in Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie from specimens collected near Tammin. The specific epithet (dielsiana) honours Ludwig Diels.
Thomasia dielsii is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is a low, erect to spreading shrub with egg-shaped leaves with wavy edges, and purple, violet and blue flowers.
Pimelea leucantha is a species of flowering plant in the family Thymelaeaceae and is endemic to near-coastal areas in the west of Western Australia. It is a shrub with linear to narrowly egg-shaped or narrowly elliptic leaves and clusters of white to pale yellow flowers surrounded by 4 or 6 egg-shaped involucral bracts.
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.