Shrub of the pittosporum family
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Marianthus candidus, commonly known as white marianthus, is a species of flowering plant in the family Pittosporaceae and is endemic to the south-west of Western Australia. It is a twining shrub or climber with elliptic leaves and white flowers arranged in groups of twenty to thirty and becoming fawn or pink as they age.
Description.
"Marianthus candidus" is a twining shrub or climber with warty stems that are silky-hairy at first, but become glabrous as they age. Its adult leaves are elliptic, long and wide on a petiole long. The lower surface of the leaves is silky-hairy. The flowers are arranged in groups of ten to thirty on a rachis long the peduncle and pedicels less than long. The sepals are egg-shaped, long, and pink and white. The five petals are long, white, fading to fawn or pink and joined at the base to form a short tube with spatula-shaped, spreading lobes. Flowering mainly occurs in October and November.
Taxonomy.
"Marianthus candidus" was first formally described in 1837 by Stephan Endlicher in "Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in sinu Regis Georgii collegit Carolus Liber Baro de Hügel" from an unpublished descripiption by Charles von Hügel of a plant he collected in the Swan River Colony. The specific epithet ("candidus") means "pure glossy white".
Distribution and habitat.
White marianthus grows in coastal heath, on limestone plains and granite outcrops, near streams or in forest south from Perth to Cape Leeuwin and Manjimup in the Esperance Plains, Jarrah Forest, Swan Coastal Plain and Warren bioregions of south-western Western Australia.
Conservation status.
"Marianthus candidus" is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.
References.
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