Xanthosia peduncularis

Xanthosia peduncularis

Priority Three — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Apiaceae
Genus: Xanthosia
Species:
X. peduncularis
Binomial name
Xanthosia peduncularis

Xanthosia peduncularis is a spreading perennial herb in the family Apiaceae and is endemic to the south of Western Australia. It has trifoliate leaves at the base of the plant and cream-coloured flowers in a compound umbel with 3 or 4 rays.

Description

Xanthosia peduncularis is a spreading perennial herb that typically grows to a height of about 15 cm (5.9 in). Its leaves are trifoliate, arranged at the base of the plant, the leaflets linear or wedge-shaped. The flowers are arranged in a compound umbel with the flowers arranged in 3 or 4 rays and a few central flowers. There are narrow involucral bracts that are longer than the flowers and the sepals are heart-shaped. Flowering occurs from September to November.[2][3]

Taxonomy and naming

Xanthosia peduncularis was first formally described in 1867 by George Bentham in his Flora Australiensis from specimens collected by James Drummond.[4] The specific epithet (peduncularis) means "pedunculate".[5]

Distribution and habitat

This species of xanthosia grows in gravelly sand in the Esperance Plains bioregion of southern Western Australia.[3]

Conservation status

Xanthosia peduncularis is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[3] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[6]

References

  1. ^ "Xanthosia peduncularis". Australian Plant Census. Retrieved 29 March 2024.
  2. ^ Bentham, George (1867). Flora Australiensis. Vol. 3. London: Lovell Reeve & Co. pp. 362–363. Retrieved 29 March 2024.
  3. ^ a b c "Xanthosia peduncularis". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ^ "Xanthosia peduncularis". APNI. Retrieved 29 March 2024.
  5. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 273. ISBN 9780958034180.
  6. ^ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Biodiversity, Conservation and Attractions. Retrieved 28 March 2024.