Grevillea crowleyae | |
---|---|
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Grevillea |
Species: | G. crowleyae |
Binomial name | |
Grevillea crowleyae | |
Grevillea crowleyae is a species of flowering plant in the family Proteaceae and is endemic to a restricted area in the south-west of Western Australia. It is a dense, spreading shrub with deeply divided leaves usually with three to seven linear lobes, and grey, pale yellowish or greenish flowers with a maroon-black style.
Grevillea corrugata is a dense, spreading shrub that typically grows to a height of 0.5–1.5 m (1 ft 8 in – 4 ft 11 in). Its leaves are 30–70 mm (1.2–2.8 in) long and deeply divided with three to seven linear lobes 10–42 mm (0.39–1.65 in) long and about 0.8 mm (0.031 in) wide. The flowers are grey, pale yellowish or greenish and arranged in groups on a rachis 20–50 mm (0.79–1.97 in) long, the pistil usually 34–38 mm (1.3–1.5 in) long and the style maroon-black, sometimes red. Flowering occurs from August to November and the fruit is a woolly-hairy, oblong follicle 13–16 mm (0.51–0.63 in) long. [3] [4] [5]
Grevillea crowleyae was first formally described in 1993 by Peter M. Olde and Neil R. Marriott in the journal Nuytsia from specimens collected by Olde near Darkan in 1991. [5] [6] The specific epithet (crowleyae) honours Valma Crowley, an amateur naturalist. [5]
This grevillea is only known about ten plants growing in a disturbed site in gravel pit in forest at the type location in the south-west of Western Australia. [3]
Grevillea corrugata is listed as Endangered on the IUCN Red List of Threatened Species due to its restricted, severely fragmented range and the continuing decline in habitat quality and number of mature individuals. A population decline of at least half over the past 75 years is inferred due to habitat clearing for agriculture and roads. [1]
It is also listed as "Priority Two" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, [4] meaning that it is poorly known and from only one or a few locations. [7]
The population is estimated to be fewer than 1,000 mature individuals. It is currently declining due to threats such as land clearing and competition with invasive weeds. It is unknown how susceptible the species is to dieback, a disease caused by Phytophtora pathogens. [1]
Grevillea tetragonoloba is species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a dense, erect to spreading shrub, usually with pinnatipartite to almost pinnatisect leaves, the end lobes linear, and clusters of yellowish-brown to fawn flowers with a scarlet to orange-red style.
Grevillea thyrsoides is a species of flowering plant in the family Proteaceae, and is endemic to the southwest of Western Australia. It is a small, spreading or low-lying shrub, with pinnatisect to comb-like leaves, the end lobes linear, and clusters of hairy pinkish-red flowers.
Grevillea curviloba is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a prostrate to erect shrub with short branchlets, divided leaves with linear to narrowly lance-shaped lobes with the narrower end towards the base, and white to cream-coloured flowers.
Grevillea corrugata is a species of flowering plant in the family Proteaceae and is endemic to a restricted area in the south-west of Western Australia. It is a dense shrub with deeply divided leaves usually with three to five sharply-pointed, linear lobes, and white to cream-coloured flowers.
Grevillea kirkalocka is a species of flowering plant in the family Proteaceae and is endemic to inland Western Australia. It is a low, spreading shrub with divided leaves with sharply-pointed linear lobes and clusters of red flowers.
Grevillea plurijuga is a species of flowering plant in the family Proteaceae and is endemic to southern Western Australia. It is a prostrate to low-lying or dense mounded to erect shrub with divided leaves with linear lobes and loose clusters of hairy, red or pink flowers.
Grevillea dryandroides, commonly known as phalanx grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. A diffuse, clumping shrub, it often forms suckers and has divided leaves with up to 35 pairs of leaflets, and groups of red to pinkish flowers on an unusually long, trailing peduncle.
Grevillea althoferorum, commonly known as the split-leaved grevillea, is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of Western Australia. It is a compact, rounded shrub with sharply-pointed, deeply lobed leaves and dull yellow flowers with a creamy-yellow style.
Grevillea insignis, commonly known as wax 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, bushy shrub with more or less oblong leaves with seven to seventeen sharply-pointed, triangular teeth, and more or less spherical or cylindrical clusters of cream-coloured flowers ageing to pink.
Grevillea bracteosa, also known as bracted 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 to spreading shrub usually with linear leaves, and oval to more or less spherical clusters of glabrous pale green to greenish-pink flowers with a pink or white style.
Grevillea amplexans is a species of flowering plant in the family Proteaceae and is endemic to the Mid West region of Western Australia. It is a spreading shrub with arching branches, stem-clasping, sharply-pointed, lobed or toothed leaves and white to cream-coloured flowers.
Grevillea coccinea is a species of flowering plant in the family Proteaceae and is endemic to the south of Western Australia. It is a low-lying or sprawling shrub with narrowly wedge-shaped to linear leaves and white, cream-coloured, and red or yellow flowers.
Grevillea dolichopoda is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a low-lying shrub with linear to more or less cylindrical leaves and groups up to four red and orange flowers with a red, green-tipped style.
Grevillea haplantha is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a dense, rounded shrub with linear leaves and clusters of pink to red flowers with white or brown hairs, depending on subspecies.
Grevillea nivea is a species of flowering plant in the family Proteaceae and is endemic to the south of Western Australia. It is a dense shrub with spreading to ascending branches, crowded, divided leaves, the end lobes linear, and dense clusters of red flowers.
Grevillea prominens is a species of flowering plant in the family Proteaceae and is endemic to a restricted part of the South West region of Western Australia. It is a shrub with divided leaves, the end-lobes linear to narrow triangular, and creamy-white flowers usually projected beyond the foliage.
Grevillea rara, also known as the rare grevillea, is a species of flowering plant in the family Proteaceae and is endemic to a restricted part of the South West region of Western Australia. It is a prostrate, sprawling shrub when young, later a dense, prickly shrub with pinnatisect leaves with linear lobes, and clusters of white to pale pink flowers.
Grevillea squiresiae is a species of flowering plant in the family Proteaceae and is endemic to a small area in the Avon Wheatbelt region of Western Australia. It is a single-stemmed shrub, usually with pinnatipartite leaves, the end lobes more or less linear, and clusters of red flowers.
Grevillea uniformis is species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with broadly egg-shaped to fan-shaped leaves with sharply tipped teeth or lobes, and more or less spherical clusters of white flowers.
Grevillea neodissecta is a species of flowering plant in the family Proteaceae and is endemic to Western Australia. It is low, dense shrub with deeply divided leaves, the end lobes linear and sharply pointed, and small clusters of rose pink and white to cream-coloured flowers with a pinkish-red style.