Grevillea delta | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Grevillea |
Species: | G. delta |
Binomial name | |
Grevillea delta | |
Synonyms [1] | |
Grevillea thelemanniana subsp. deltaMcGill. |
Grevillea delta is a species of flowering plant in the family Proteaceae and is endemic to restricted area in the south-west of Western Australia. It is a bushy, spreading shrub with hairy branchlets, divided leaves with linear lobes, and groups of red flowers with a red, green-tipped style.
Grevillea delta is a bushy, spreading shrub that typically grows to a height of 0.3–1.8 m (1 ft 0 in – 5 ft 11 in) and has its branchlets covered with shaggy hairs. Its leaves are divided, the leaflets sometimes divided again, the ultimate lobes linear, 1.5–12 mm (0.059–0.472 in) long and 0.3–0.8 mm (0.012–0.031 in) wide with the edges rolled under, enclosing most of the lower surface except for the mid-vein. The flowers are arranged in groups of twelve to twenty, 20–40 mm (0.79–1.57 in) long on a woolly-hairy rachis 8–15 mm (0.31–0.59 in) long. The flowers are red with a green-tipped style, the pistil about 27 mm (1.1 in) long. Flowering occurs from July to October and the fruit is a narrow oblong follicle 10–12 mm (0.39–0.47 in) long with a conspicuous ridge. [2] [3]
This grevillea was first formally described in 1986 by Donald McGillivray who gave it the name Grevillea thelemanniana subsp. delta in his book New names in Grevillea (Proteaceae) from specimens collected by Alex George near Mount Lesueur in 1974. [4] In 1994 Peter M. Olde and Neil R. Marriott raised the subspecies to species status as Grevillea delta. [5]
The specific epithet (delta) is a Greek letter, since the species was first referred to as 'Race G' of subspecies thelemanniana. [6]
This grevillea grows in mallee heath near creeks or in low-lying areas and is only known from near the type location. [2] [3]
Grevillea delta is listed as "Priority Two" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, [3] meaning that it is poorly known and from only one or a few locations. [7]
Grevillea leptopoda is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a spreading to erect shrub with divided leaves, the lobes further divided, the end lobes linear, and clusters of white to cream-coloured flowers.
Grevillea fililoba 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 spreading shrub with soft foliage, divided leaves with narrow linear lobes, and clusters of pink to bright red and white 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 concinna, commonly known as red combs or elegant grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a spreading to erect shrub with mostly linear to narrow wedge-shaped leaves sometimes with a sharp point on the tip. Flower colour varies with subspecies.
Grevillea centristigma is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a low, compact to erect, rounded or spreading shrub with softly-hairy narrowly elliptic to egg-shaped leaves with the narrower end towards the base, and deep yellow to orange flowers with a yellow, later brick-red style.
Grevillea hookeriana, commonly known as red toothbrushes or Hooker's grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a spreading to erect shrub, usually with linear leaves or deeply divided leaves with linear lobes, and toothbrush-shaped groups of red, black or yellowish green flowers, the style maroon to black.
Grevillea montis-cole, commonly known as Mount Cole grevillea, is a species of flowering plant in the family Proteaceae and is endemic to central-western Victoria, Australia. It is a shrub with divided leaves with 5 to 15 lobes, the end lobes more or less triangular to narrowly oblong and sharply-pointed, and clusters of greenish to fawn and dull purplish flowers.
Grevillea diversifolia, the variable-leaved 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 prostrate shrub with simple or divided leaves and groups white to cream-coloured flowers with a dull red style.
Grevillea juncifolia, commonly known as honeysuckle grevillea, honey grevillea, honeysuckle spider flower, and many indigenous names, is a species of flowering plant in the family Proteaceae and is endemic to inland Australia. It is a bushy shrub or small tree with erect, linear leaves and clusters of bright yellow to orange flowers.
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, ornage, yellow or red flowers.
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 kenneallyi is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a dense, spreading shrub with divided leaves, the end lobes more or less linear, and clusters of white flowers.
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 nematophylla, commonly known as water bush or silver-leaved water bush, is a species of flowering plant in the family Proteaceae and is endemic to Australia. It is shrub or small tree with simple or pinnatisect leaves, the leaves or lobes linear, and branched, cylindrical clusters of 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 commutata is a species of flowering plant in the family Proteaceae and is endemic to the west of Western Australia. It is a spreading, open to dense shrub with egg-shaped leaves with the narrower end towards the base, and white, cream-coloured, and pinkish-green flowers.
Grevillea manglesioides 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 usually with wedge-shaped leaves with lobed ends, and toothbrush-shaped clusters of flowers, the colour varying with 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 obliquistigma 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 linear leaves, and conical to cylindrical clusters of creamy-white to yellowish cream-coloured flowers, sometimes tinged with pink.
Grevillea neorigida is a species of flowering plant in the family Proteaceae and is endemic to Western Australia. It is compact, spreading shrub with deeply-divided leaves, the end lobes linear and somewhat sharply-pointed, and clusters of creamy-brown to off-white flowers with a scarlet or orange-red style.