Marianthus ringens

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Marianthus ringens
Marianthus ringens.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Pittosporaceae
Genus: Marianthus
Species:
M. ringens
Binomial name
Marianthus ringens
Synonyms [1]
  • Billardiera ringens(Drumm. ex Harv.) E.M.Benn.
  • Calopetalon ringensDrumm. ex Harv.

Marianthus ringens is a species of flowering plant in the family Pittosporaceae and is endemic to the southwest of Western Australia. It is a shrub or climber with thick, elliptic leaves and yellow and orange-red flowers that darken as they age, arranged dense clusters.

Contents

Description

Marianthus ringens is a woody shrub or climber with silky hairy new shoots that become glabrous as they age. Its adult leaves are elliptic, thick, 80–105 mm (3.1–4.1 in) long and 9–22 mm (0.35–0.87 in) wide on a petiole up to 10 mm (0.39 in) long. The flowers are borne in dense clusters, the five sepals 3–4 mm (0.12–0.16 in) long and creamy-red. The five petals are yellow grading to orange-red, 12–21 mm (0.47–0.83 in) long and darken as they age. Flowering occurs in August and September and the fruit is a thin, spindle-shaped capsule 7–9 mm (0.28–0.35 in) long and 3–4 mm (0.12–0.16 in) in diameter. [2] [3]

Taxonomy

This species was first formally described in 1855 by William Henry Harvey who gave it the name Calopetalon ringens in Hooker's Journal of Botany and Kew Garden Miscellany from an unpublished description by James Drummond. [4] [5] In 1859, Ferdinand von Mueller transferred the species to Marianthus as M. ringens in his Fragmenta Phytographiae Australiae . [6] The specific epithet (ringens) means "with a wide-open mouth", referring to the flowers. [7]

Distribution and habitat

Marianthus ringens grows in wet places between Dongara and the Murchison River in the Geraldton Sandplains bioregion of south-western Western Australia. [2] [3]

Conservation status

This marianthus is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions. [2]

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References

  1. 1 2 "Marianthus ringens". Australian Plant Census. Retrieved 28 June 2023.
  2. 1 2 3 "Marianthus ringens". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 "Marianthus ringens". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 28 June 2023.
  4. "Calopetalon ringens". APNI. Retrieved 28 June 2023.
  5. Harvey, William H.; Hooker, William J. (1855). "Characters of some new genera of plants recently discovered by Mr. James Drummond in Western Australia". Hooker's Journal of Botany and Kew Garden Miscellany. 7: 52–53. Retrieved 28 June 2023.
  6. "Marianthus ringens". APNI. Retrieved 28 June 2023.
  7. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 296. ISBN   9780958034180.