Cluster boronia | |
---|---|
Boronia capitata near Quairading | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Sapindales |
Family: | Rutaceae |
Genus: | Boronia |
Species: | B. capitata |
Binomial name | |
Boronia capitata | |
Occurrence data from Australasian Virtual Herbarium |
Boronia capitata, commonly known as the cluster boronia, [2] 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.
Boronia capitata is a slender, spreading shrub that grows to a height of 15–130 cm (6–50 in). It has simple, thick, linear to club-shaped leaves 4–15 mm (0.2–0.6 in) long. The flowers are pink and are arranged in clusters on the ends of the branches, each on a pedicel 1–3 mm (0.04–0.1 in) long. The four sepals are broadly elliptic to narrow triangular, and the four petals are broadly elliptic, about 6 mm (0.2 in) long. [2] [3] [4] [5]
Boronia capitata was first formally described in 1863 by George Bentham and the description was published in Flora Australiensis from a specimen collected by James Drummond. [4] [6] The specific epithet (capitata) is a Latin word meaning "having a head". [7]
In 1971, Paul G. Wilson described three subspecies: [8]
Subspecies clavata is classified as "not threatened" [13] but subspecies gracilis is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife [14] meaning that it is poorly known and known from only a few locations but is not under imminent threat. [15] Subspecies capitata is listed as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 [16] and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia). [12] The main threats to this subspecies are clearing and fragmentation of its habitat. [16]
Cyanothamnus anemonifolius, commonly known as narrow-leaved boronia or sticky boronia, is a flowering plant that is endemic to south-eastern Australia. It is a shrub with mostly pinnate leaves, with white to pale pink four-petalled flowers in leaf axils.
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 dichotoma is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is an erect, slender perennial herb or shrub with simple leaves and pink, four-petalled flowers. The species is characterised by sticky glandular hairs on the pedicels.
Boronia ericifolia, commonly known as Wongan Hills boronia, is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is an erect, densely branched shrub with trifoliate leaves and pink, white or creamy yellow flowers with four petals and eight stamens only known from near Wongan Hills and Moora.
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.
Boronia filicifolia is a plant in the citrus family, Rutaceae and is endemic to the far north-west of Australia. It is an erect or sprawling shrub with many branches, pinnate leaves with up to 55 leaflets and white to pink flowers with the sepals a similar length to the petals.
Boronia humifusa is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a low-growing, mostly hairless, wiry perennial with four-angled branches, simple, flat leaves and pink or red, four-petalled flowers in groups on the ends of the branches.
Cyanothamnus inconspicuus 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 small white or creamy green flowers with four petals and eight stamens and occurs from the Stirling Range to Mount Ragged.
Cyanothamnus inflexus is a plant in the citrus family Rutaceae and is endemic to tablelands near the New South Wales - Queensland border in Australia. It is an erect, woody shrub with pinnate leaves and up to seven white to pink four-petalled flowers in the leaf axils. Boronia bipinnata is similar but has larger, bipinnate or tripinnate leaves and smaller sepals and petals.
Boronia kalumburuensis is a plant in the citrus family Rutaceae and is endemic to the Kalumburu area of Western Australia. It is an erect or sprawling shrub with many branches, pinnate leaves and white to pink four-petalled flowers with the sepals longer and wider than the petals.
Boronia minutipinna is a plant in the citrus family Rutaceae and is endemic to a small area in the Kimberley region of Western Australia. It is an erect shrub with many branches, hairy stems and leaves, pinnate leaves and white to pink, four-petalled flowers with the sepals longer and wider than the petals.
Boronia pauciflora is a plant in the citrus family Rutaceae and is endemic to the Kimberley region of Western Australia. It is an erect shrub usually with simple leaves and white to pink, four-petalled flowers.
Cyanothamnus penicillatus is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a low, spreading shrub with pinnate leaves and white flowers with four petals and eight stamens.
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 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.
Cyanothamnus tenuis, commonly known as blue boronia, is a species of plant in the citrus family, Rutaceae, and is endemic to the southwest of Western Australia. It is a slender shrub with thread-like, sessile leaves, and flowers with four petals that are white to pink on the front and pale blue on the back.
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.
Cyanothamnus westringioides is a species of erect shrub that is endemic to a small area in the southwest of Western Australia. It has simple, narrow, sessile leaves and pale pink flowers arranged singly in leaf axils.