| Grevillea wittweri | |
|---|---|
 | |
| Near Lake King | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Grevillea |
| Species: | G. wittweri |
| Binomial name | |
| Grevillea wittweri | |
Grevillea wittweri is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a shrub with pinnatipartite leaves, and clusters of greenish to fawn flowers with a crimson style.
Grevillea wittweri is a moderately dense, spreading shrub that typically grows to a height of 1.0–2.2 m (3 ft 3 in – 7 ft 3 in). Its leaves are 40–80 mm (1.6–3.1 in) long and pinnatipartite with 3 to 8 lobes that are usually divided again, the end-lobes linear, 5–35 mm (0.20–1.38 in) long, 0.8–1.2 mm (0.031–0.047 in) wide and sharply pointed. The edges of the leaves are rolled under, concealing the lower surface, apart from the mid-vein. The flowers are arranged in erect clusters on one side of a rachis 50–75 mm (2.0–3.0 in) long, the flowers greenish to fawn-pink with a crimson to light burgundy style, the pistil 18–21 mm (0.71–0.83 in) long. Flowering occurs from September to April and the fruit is an oblong or ovoid follicle 12–14 mm (0.47–0.55 in) long and covered with woolly, glandular hairs. [3] [4] [5]
Grevillea wittweri was first formally described by the botanist Donald McGillivray in 1986 his book, New Names in Grevillea (Proteaceae) from specimens collected near Lake Cairlocup by Kenneth Newbey in 1975. [6] The specific epithet (wittweri) honours Ernst Wittwer, the superintendent of Kings Park, Perth from 1974 to 1980. [7]
This grevillea has a scattered distribution in the area between Gnowangerup, Newdegate, Lake Johnston and Ravensthorpe in the Coolgardie, Esperance Plains and Mallee bioregions of south-western Western Australia. It grows in shrubland on sandplains, often around salt lakes. [3] [4]
Grevillea wittweri is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions but as "vulnerable" by the International Union for Conservation of Nature. [1] [3]
Grevillea thelemanniana, commonly known as spider net grevillea, is species of flowering plant in the family Proteaceae and is endemic to Perth, Western Australia. It is a spreading shrub with linear and pinnatipartite to pinnatisect leaves with linear to narrowly elliptic lobes, and clusters of 6 to 14 pinkish-red and cream-coloured flowers with a red, green-tipped style.
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 intricata is a species of flowering plant in the family Proteaceae and is endemic to the west of Western Australia. It is a densely-branched shrub with tangled branchlets, divided leaves with linear lobes and clusters of pale greenish-white to light cream-coloured flowers.
Grevillea ripicola, commonly known as Collie grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the South West region of Western Australia. It is a dense, spreading shrub with pinnatipartite leaves with rigid, sharply-pointed lobes, and clusters of yellowish-orange flowers, usually with a red style.
Grevillea globosa is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a spreading shrub with deeply divided leaves that have three to nine linear lobes, and dense, spherical clusters of pale green, creamy-green and reddish-brown flowers.
Grevillea pectinata, commonly known as comb-leaf grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south of Western Australia. It is a spreading shrub with divided, comb-like leaves and mauve-pink to red and cream-coloured to yellow flowers with a red to deep pink style.
Grevillea scapigera, commonly known as Corrigin grevillea, is a species of flowering plant in the family Proteaceae and is endemic to a small area of the south-west of Western Australia. It is a prostrate to weakly ascending, suckering shrub with divided leaves, the end lobes broadly triangular and sharply-pointed, and spikes of white to cream-coloured flowers held above the foliage.
Grevillea nana, commonly known as dwarf grevillea, 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 low, mounded, dense shrub with divided leaves with sharply-pointed, linear lobes, and clusters of pink, orange, yellow or red flowers.
Grevillea aneura, commonly known as Red Lake grevillea, is a species of flowering plant in the family Proteaceae and is endemic to Western Australia. It is a dense, prickly shrub with sharply-pointed, deeply divided leaves and light yellow to reddish flowers.
Grevillea refracta, commonly known as silver-leaf grevillea, is a species of plant in the protea family and is native to northern Australia. It is a tree or shrub usually with pinnatipartite leaves and red and yellow flowers arranged on a branched, downcurved raceme.
Grevillea baxteri, commonly known as the Cape Arid grevillea, is a flowering plant of the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect to spreading shrub with pinnatipartite leaves and greenish to fawn or creamy-orange flowers.
Grevillea murex is a species of flowering plant in the family Proteaceae and is endemic to a relatively small area of south-western Western Australia. It is a spreading, much-branched shrub with hand-shaped leaves and clusters of greenish-white to dull cream-coloured flowers.
Grevillea paradoxa, commonly known as the bottlebrush 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, prickly shrub with pinnatipartite leaves, the lobes linear, widely spreading and sharply pointed, and with cylindrical clusters of pale to dark pink or cream-coloured flowers with a pinkish-red style.
Grevillea patentiloba 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, spreading to straggling shrub with divided leaves, and down-turned clusters of red to deep pink and cream-coloured to bright yellow flowers with a red to deep pink style.
Grevillea secunda is a species of flowering plant in the family Proteaceae and is endemic to inland Western Australia. It is a spreading shrub with divided leaves, the end lobes cylindrical and sharply pointed, and clusters of pinkish-red flowers with a red style arranged on one side of the floral rachis.
Grevillea spinosa, commonly known as tjiilka-tjiilka, is species of flowering plant in the family Proteaceae and is endemic to inland Western Australia. It is a dense, prickly shrub with mostly pinnatipartite leaves with rigid, sharply-pointed linear lobes, and erect clusters of reddish to blackish green flowers with a bright yellow to orange style.
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 stenostachya is a species of flowering plant in the family Proteaceae and is endemic to the west of Western Australia. It is a compact shrub with pinnatipartite to almost pinnatisect leaves with 3 to 5 lobes, the end lobes cylindrical and sharply pointed, and greenish-white to creamy yellow flowers with a cream-coloured to yellow style.
Grevillea tenuiflora, commonly known as amber grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a low, spreading shrub with pinnatipartite leaves with 5 to 11 linear to cylindrical lobes, and clusters of orange flowers often borne close to the ground.
Grevillea yorkrakinensis is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a small, compact, spreading shrub with linear leaves, and clusters of red to yellowish-orange flowers arranged in groups of up to 5, the styles red to yellow or greenish.
