Petrophile helicophylla | |
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In the Stirling Range National Park | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Petrophile |
Species: | P. helicophylla |
Binomial name | |
Petrophile helicophylla | |
Petrophile helicophylla is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a prostrate, spreading shrub with twisted, needle-like leaves and heads of hairy white to creamy-white or pale pink flowers.
Petrophile helicophylla is a shrub that typically grows to 20–35 cm (7.9–13.8 in) high, 160 cm (63 in) wide and has glabrous branchlets and leaves. The leaves are needle-shaped 150–300 mm (5.9–11.8 in) long and spirally twisted. The flowers are arranged on the ends of branchlets in heads 25–30 mm (0.98–1.18 in) long and sessile or on peduncles 6–12 mm (0.24–0.47 in) long, with a few tapering involucral bracts at the base. The flowers are about 35 mm (1.4 in) long, white to creamy-white or pale pink and hairy. Flowering mainly occurs from October to February and the fruit is a nut, fused with others in an elliptic to spherical head 15–25 mm (0.59–0.98 in) long. [2] [3] [4]
Petrophile helicophylla was first formally described in 1990 by Donald Bruce Foreman in Muelleria from material he collected near Ravensthorpe in 1979. [4] [5] The specific epithet (helicophylla) means "coil-leaved". [6]
This petrophile grows in low heath, scrub and woodland on sand plains and near salt pans near Ravensthorpe and Jerramungup in the Esperance Plains and Mallee biogeographic regions of southwestern Western Australia. [2] [3]
Petrophile helicophylla is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [3]
Petrophile linearis, commonly known as pixie mops, is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with narrow egg-shaped leaves, the narrower end towards the base, and oval to spherical heads of hairy, greyish-pink or mauve to almost white flowers.
Petrophile acicularis is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a low, tufted shrub with cylindrical leaves and oval heads of densely hairy, cream-coloured flowers.
Petrophile arcuata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a spreading shrub with cylindrical leaves and oval to spherical heads of hairy yellowish flowers.
Petrophile aspera is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a low shrub with relatively long, cylindrical leaves often curled at the tip, and oval heads of scented pale pink to pale yellow or white flowers.
Petrophile brevifolia is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with cylindrical, sharply-pointed leaves, and spherical heads of hairy yellow, cream-coloured or white flowers.
Petrophile chrysantha is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a small shrub with crowded, sharply-pointed, pinnately-divided leaves, and oval heads of hairy, cream-coloured to dark yellow flowers.
Petrophile circinata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a low, spreading shrub with pinnately-divided, sharply-pointed leaves, and more or less spherical heads of hairy, white, yellow or cream-coloured flowers.
Petrophile clavata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with curved, needle-shaped, sharply-pointed leaves and spherical heads of hairy, cream-coloured to very pale yellow flowers.
Petrophile conifera is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a bushy, much-branched shrub with pinnate, sharply-pointed leaves, and oval heads of hairy, cream-coloured to yellowish white flowers.
Petrophile cyathiforma is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a small shrub with needle-shaped, sharply-pointed leaves and cup-shaped heads of glabrous, bright yellow flowers.
Petrophile diversifolia is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with pinnate, sharply-pointed leaves, and oval heads of densely hairy, white or creamy-white flowers.
Petrophile filifolia is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a small shrub with curved, long, needle-shaped leaves and more or less spherical heads of hairy cream-coloured to pale yellow flowers.
Petrophile glauca is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with pinnately-divided, flattened, glaucous leaves and more or less spherical heads of hairy yellow to creamy-white flowers.
Petrophile heterophylla, commonly known as the variable-leaved conebush, is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with variably shaped, sometimes pinnately-divided leaves, and oval heads of silky-hairy, yellow to cream-coloured flowers.
Petrophile imbricata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with overlapping, needle-like leaves and oval heads of hairy cream-coloured flowers.
Petrophile media is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a low, spreading to erect shrub with needle-shaped leaves, and oval heads of hairy cream-coloured to yellow flowers.
Petrophile megalostegia is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with needle-shaped or flattened, sometimes S-shaped leaves with a sharply-pointed tip, and more or less cylindrical heads of silky-hairy, yellow to cream-coloured flowers.
Petrophile merrallii is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is an erect shrub with spreading, needle-shaped leaves and oval to spherical heads of hairy yellow flowers.
Petrophile misturata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with simple and pinnate, needle-shaped leaves and spherical heads of hairy, dull yellow flowers.
Petrophile foremanii is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with more or less cylindrical leaves and elliptic to spherical heads of hairy, creamy yellow flowers on the ends of branchlets.