Aniseed boronia | |
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Boronia crenulata leaves and flowers | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Sapindales |
Family: | Rutaceae |
Genus: | Boronia |
Species: | B. crenulata |
Binomial name | |
Boronia crenulata | |
Occurrence data from Australasian Virtual Herbarium |
Boronia crenulata, commonly known as aniseed boronia, is a plant in the citrus family Rutaceae and is endemic to the south-west of Western Australia. It is an open-branched shrub, often trailing between other plants, has strap-like leaves and pink to purple-red, four-petalled flowers in winter and autumn.
Boronia crenulata is a shrub which grows to a height of about 0.25–1.2 m (0.8–4 ft) and has weak, thin stems which often trail between other plants. The leaves are variable in shape, sometimes even on one plant, but in general are about 20 mm (0.8 in) long and 2 mm (0.08 in) wide, strap-like or egg-shaped with the narrower end towards the base. There are usually a few long soft hairs on the leaves and the margins of the leaves usually have a few small teeth. [2] [3] [4]
The flowers are pink to reddish and are scattered singly or in small groups in leaf axils or at the ends of the stems. The flowers are about 1 cm (0.4 in) in diameter on a stalk 4 mm (0.2 in) long. The sepals are egg-shaped to triangular, 1.5–2 mm (0.06–0.08 in) long and usually have a sharp, pointed tip. There are four glabrous petals and eight stamens. [2] [3] [4]
Boronia crenulata was first formally described in 1807 by James Edward Smith and the description was published in Transactions of the Linnean Society of London . [5] [6] The specific epithet (crenulata) is derived from the Latin word crena meaning "a notch or rounded projection" [7] referring to the teeth on the leaf margins. [3]
In 1998, Paul G. Wilson described four subspecies and two varieties in the journal Nuytsia and the names are accepted by the Australian Plant Census: [8]
This boronia occurs in a broad area of the south-west of Western Australia in the Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain and Warren biogeographic regions. It grows in a range of soils, from clay to limestone and from swampy coastal areas to the margins of salt lakes and rocky outcrops. [4]
Boronia crenulata is listed as "not threatened" by the Government of Western Australia Department of Parks and Wildlife. [4]
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.
Crowea angustifolia is a flowering plant in the family Rutaceae, and is endemic to the south-west of Western Australia. It is an erect shrub growing to 3 m (10 ft) high by 1.0 m (3 ft) in diameter with white or pink flowers in spring.
Cyanothamnus baeckeaceus is a plant in the citrus family, Rutaceae and is endemic to eastern Australia. It is a slender or straggling shrub with simple or trifoliate leaves and pink and white four-petalled flowers. It is endemic to the south-west of Western Australia.
Boronia barkeriana, commonly known as Barker's boronia, is a plant in the citrus family, Rutaceae and is endemic to eastern Australia. It is a shrub with ground-hugging branches, simple, toothed leaves and bright pink, four-petalled flowers.
Boronia clavata, commonly known as Bremer boronia, is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a shrub with bipinnate leaves and pale, yellowish green, four-petalled flowers.
Cyanothamnus coerulescens, commonly known as blue boronia, is a plant in the citrus family, Rutaceae and is endemic to southern Australia. It is a small, spindly shrub with glandular stems, small, more or less cylindrical leaves and blue to pinkish mauve, four-petalled flowers. There are two subspecies endemic to Western Australia and a third that also occurs in three eastern states.
Boronia juncea is a plant in the citrus family, Rutaceae and is endemic to the far south-west of Western Australia. It is an erect shrub with linear, short-lived leaves and groups of up to eight white to pink, four-petalled flowers.
Boronia purdieana is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a shrub with pinnate leaves and yellow, four-petalled flowers arranged singly in leaf axils.
Boronia ternata is a plant in the citrus family Rutaceae and is endemic to the south-west of Western Australia. It is an erect shrub with many branches, simple or trifoliate leaves and white to pink four-petalled flowers.
Boronia anceps is a plant in the citrus family, Rutaceae and is endemic to a small area in the south-west of Western Australia. It is a perennial herb with small leaves and pink, four-petalled flowers.
Boronia coriacea is a plant in the citrus family, Rutaceae and is endemic to a small area in the south-west of Western Australia. It is a small shrub with pinnate leaves and hairless pink, four-petalled flowers in small clusters on the ends of the branches.
Boronia corynophylla is a plant in the citrus family, Rutaceae and is endemic to a small area in the south-west of Western Australia. It is a spreading shrub with thin, simple, cylindrical to narrow club-shaped leaves and pale red, four-petalled flowers in groups of up to three on the ends of the branches.
Boronia capitata, commonly known as the cluster boronia, is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a slender, spreading shrub with simple leaves and pink, four-petalled flowers.
Cyanothamnus fabianoides is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a compact shrub with many branches, simple, more or less cylindrical leaves and single white, pink or pale blue four-petalled flowers in the leaf axils.
Cyanothamnus ramosus is a species of plant in the citrus family Rutaceae and is endemic to the southwest of Western Australia. It is an erect, mostly glabrous shrub with pinnate leaves with up to seven leaflets, and white, four-petalled flowers with blue or pale green backs.
Boronia rupicola is a species of plant in the citrus family Rutaceae and is endemic to a small area in the Northern Territory, Australia. It is a small shrub with weeping branches, simple or pinnate leaves and small, green, inconspicuous flowers.
Boronia scabra, commonly known as rough boronia, is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is an open shrub with simple, often clustered, oblong to elliptic leaves, and pink, mostly four-petalled flowers.
Philotheca angustifolia, commonly known as narrow-leaf wax flower, is a species of flowering plant in the family Rutaceae and is endemic to south-eastern Australia. It is a shrub with small leaves and white flowers with five egg-shaped petals in spring.
Boronia wilsonii is an erect shrub that is endemic to northern Australia. Its branches, leaves and backs of the flowers are densely covered with woolly hairs. The petals are white to pink or burgundy-coloured.
Boronia virgata is a plant in the citrus family, Rutaceae and is endemic to the south coast of Western Australia. It is a virgate shrub with pinnate leaves with between three and five leaflets, and flowers with red sepals and deep pink, egg-shaped petals.