Bremer boronia | |
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Boronia clavata in Kings Park Botanic Gardens | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Sapindales |
Family: | Rutaceae |
Genus: | Boronia |
Species: | B. clavata |
Binomial name | |
Boronia clavata | |
Boronia clavata, commonly known as Bremer boronia, [2] 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.
Boronia clavata is a shrub that grows to a height of 1–2 m (3.3–6.6 ft) with its stems covered with short, soft hairs. The leaves are mostly pinnate with between three and seven linear to wedge-shaped leaflets 10–20 mm (0.39–0.79 in) long. The flowers are pale yellowish green and arranged single in leaf axils on a pedicel about 3 mm (0.12 in) long. The four sepals are egg-shaped to narrow triangular, 2–3 mm (0.08–0.1 in) long and covered with short, soft hairs. The four petals are egg-shaped with the narrower end towards the base, about 8 mm (0.3 in) long. The eight stamens are club-shaped and alternate in length, those adjacent to the petals are shorter than those adjacent to the sepals. Flowering occurs from August to October and the fruit are glabrous and about 4 mm (0.16 in) long and 1 mm (0.039 in) wide. [3] [4]
Boronia clavata was first formally described in 1971 by Paul Wilson and the description was published in Nuytsia from a specimen collected near the Bremer River by Kenneth Newbey. [5] [6] The specific epithet (clavata) is derived from the Latin word clava meaning "club". [7]
Bremer boronia grows on floodplains and river banks in thickets with other shrubs. It is only known from near Bremer Bay. [3] [2]
Boronia clavata is classified as "endangered" under the Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia). [2] [4]
Verticordia helichrysantha, commonly known as coast featherflower or Barrens featherflower, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a small, woody, open-branched shrub with crowded, linear leaves and small yellow flowers from May to September.
Boronia fastigiata, commonly known as bushy boronia, is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is an erect shrub with small leaves and small groups of red, pink or purple, four-petalled flowers near the ends of the branches.
Boronia jucunda is a plant in the citrus family Rutaceae and is endemic to the far north-west of Australia. It is an erect shrub with many branches, pinnate leaves and white, four-petalled flowers. It is only known from a small area in the Kimberley region in Western Australia and in a national park in the Northern Territory.
Boronia octandra is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a small shrub with three-part leaves and greenish cream to reddish brown, four-petalled flowers.
Boronia pulchella, commonly known as the pink boronia, 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 slender shrub with rod-like stems, pinnate leaves and deep 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 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.
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 interrex, commonly known as the Regent River boronia, 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, sometimes low-lying shrub with pinnate leaves, cream-coloured to pale pink sepals and pink petals, the sepals longer and wider than the 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 revoluta, commonly known as Ironcap boronia, is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is an erect shrub with three-part leaves and pink or white, four-petalled flowers.
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.
Boronia thedae, commonly known as the Theda boronia, 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 when young, later a prostrate shrub with many branches, pinnate leaves, four white to cream-coloured or pale pink sepals and four similarly coloured petals, the sepals longer and wider than the petals.
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.