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Tribulus occidentalis

Tribulus occidentalis , common name perennial caltrop , [ 1 ] is a species of flowering plant in the family Zygophyllaceae , which is native to Australia, and found in Western A...

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Tribulus occidentalis, common name perennial caltrop,[1] is a species of flowering plant in the family Zygophyllaceae, which is native to Australia, and found in Western Australia,[1]Queensland,[2]South Australia[3] and the Northern Territory.[4] However, Robyn Barker asserts that it is confined to the west coast of Western Australia.[5]

It is a prostrate perennial herb, covered in long shaggy hairs and growing from 2 cm to 10 cm high. The leaves occur in pairs, and have leaflets in 7 - 10 pairs. The fruits have many spines, which are from 4 to 8 mm long. It grows on sandy soils and its yellow flowers can be seen from February to November.[1]

It was first described in 1849 by Robert Brown, from a specimen collected on the "west coast of Australia, or on some of its islands, in the Voyage of the Beagle."[6][7] There are no synonyms.[8]

References

  1. 123"Tribulus occidentalis". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  2. ↑"Species profile | Queensland Department of Environment, land and water: Tribulus occidentalis". apps.des.qld.gov.au. 2014-10-20. Retrieved 2021-01-16.
  3. ↑"Fact sheet for Tribulus occidentalis". www.flora.sa.gov.au. Retrieved 2021-01-16.
  4. ↑"AVH: Tribulus occidentalis occurrence data".
  5. ↑R.M.Barker (2020). "Tribulus occidentalis". Flora of Australia. Canberra: Australian Biological Resources Study, Department of Agriculture, Water and the Environment. Retrieved 17 January 2021.
  6. ↑"Tribulus occidentalis". Australian Plant Name Index, IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  7. ↑Brown, R. in Sturt, C. (1849), Botanical Appendix. Narrative of an Expedition into Central Australia 2: 69
  8. ↑"Tribulus occidentalis R.Br. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2021-01-16.