Prostanthera nivea
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Prostanthera nivea, commonly known as snowy mint-bush,[1] is a species of flowering plant in the family Lamiaceae and is endemic to eastern Australia. It is a shrub with linear to cylindrical leaves and white flowers arranged in leaf axils near the ends of branchlets and is one of the mint-bushes that is not aromatic.
Description
Prostanthera nivea is an erect or spreading shrub that grows to a height of Template:Cvt with four-ridged branches but is not aromatic. The leaves are linear to more or less cylindrical, Template:Cvt long and Template:Cvt wide and sessile. The flowers are arranged in leaf axils near the ends of branches with bracteoles that are inconspicuous or up to Template:Cvt long at the base. The sepals are Template:Cvt long forming a tube Template:Cvt long with two lobes, the upper lobe Template:Cvt long. The petals are white to mauve, Template:Cvt long with yellow spots inside the tube. Flowering occurs from September to December.[1][2][3]
Taxonomy
Prostanthera nivea was first formally described in 1834 by George Bentham from an unpublished description by Alan Cunningham. Bentham's description was published in his book Labiatarum Genera et Species.[4][5]
Bentham described two varieties and the names are accepted by the Australian Plant Census:
- Prostanthera nivea var. induta Benth.,[6] an erect, often dense shrub Template:Cvt high with branches densely covered with white hairs, leaves mostly Template:Cvt wide and leafy, linear bracteoles Template:Cvt long;[1]
- Prostanthera nivea A.Cunn. ex Benth. var. nivea,[7] an erect, often thin shrub Template:Cvt high with branches that are glabrous or only sparsely covered with white hairs, leaves mostly Template:Cvt wide and inconspicuous bracteoles.[1]
Distribution and habitat
Snowy mint-bush grows in forest, woodland and heath in south-eastern Queensland, eastern New South Wales and Victoria. Subspecies induta grows in rocky crevices or on ledges in the Warrumbungles with a single collection from the Pilliga forest.[1][2][8]
References
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