Grevillea corrugata | |
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In Maranoa Gardens | |
Scientific classification
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Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Grevillea |
Species: | G. corrugata
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Binomial name | |
Grevillea corrugata |
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 corrugata is a dense shrub typically 0.5–2.5 m (1 ft 8 in – 8 ft 2 in) high and 1.5–2 m (4 ft 11 in – 6 ft 7 in) wide. Its leaves are usually deeply divided, 40–60 mm (1.6–2.4 in) long and 90 mm (3.5 in) wide in flattened outline. The leaves have three to five sharply-pointed, linear lobes usually divided again, the ultimate lobes 15–35 mm (0.59–1.38 in) long and 0.7–0.8 mm (0.028–0.031 in) wide. The flowers are white to cream-coloured and arranged in more or less sessile, spherical to oval groups on a rachis 8–20 mm (0.31–0.79 in) long, the pistil 3.5–4.0 mm (0.14–0.16 in) long. Flowering has been observed in August and September and the fruit is a wrinkled, oblong follicle 7–11 mm (0.28–0.43 in) long. [4] [5] [6]
Grevillea corrugata was first formally described in 1993 by Peter M. Olde and Neil R. Marriott in the journal Nuytsia from specimens collected by Olde near Bindoon in 1992. [6] [7] The specific epithet (corrugata) means "strongly wrinkled", referring to the surface of the fruit. [6]
This grevillea is only known from the type location where it grows in disturbed eucalypt woodland. [4]
Grevillea corrugata is listed as Endangered on the IUCN Red List of Threatened Species, as well as under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and " Threatened" by the Western Australian Government Department of Parks and Wildlife. It has a small and highly restricted distribution with an estimated extent of occurrence of 394km² and a population of approximately 330 mature individuals. Threats to this species include pollution from chemical spraying, competition with invasive weeds and habitat clearing and fragmentation for agriculture. [1] [5] [2] [8]