Calotis dentex

White burr-daisy
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Calotis
Species:
C. dentex
Binomial name
Calotis dentex

Calotis dentex commonly known as white burr-daisy,[2] is a flowering plant in the family Asteraceae. It is a small shrub with white daisy like flowers and grows in New South Wales and Queensland.

Description

Calotis dentex is an upright, perennial, multi-branched, understory shrub to 80 cm (31 in) high with smooth or slightly hairy, brown stems. The cauline leaves are lance to oblong-shaped, 2–9 cm (0.79–3.54 in) long, 4–11 mm (0.16–0.43 in) wide, margins variable, lobed, toothed, sometimes entire, sessile and with occasional hairs. The white, occasionally mauve flowers are borne on stalks up to 5 cm (2.0 in) long, 7–13 mm (0.28–0.51 in) in diameter, either singly or in a loose cyme from leaf axils and a yellow central disc 5–10 mm (0.20–0.39 in) in diameter. Flowering occurs from October to April and the fruit is a flattened, reddish brown cypsela with several spines 4–6 mm (0.16–0.24 in) long.[2][3]

Taxonomy and naming

Calotis dentex was first formally described in 1820 by Robert Brown and the description was published in Consisting of Coloured Figures of Exotic Plants, Cultivated in British Gardens; with their History and Mode of Treatmentand the type specimen was collected at Sydney by Robert Brown. The specific epithet "dentex" refers to the toothed edges of the leaves.[4][5]

Distribution and habitat

White burr-daisy grows mostly on clay soils in grasslands and open forests in New South Wales and Queensland.[2]

References

  1. ^ "Calotis dentex". Australian Plant Census. Retrieved 11 November 2024.
  2. ^ a b c Fairley, Alan; Moore, Philip (2010). Native Plants of the Sydney Region. Jacana Books. p. 446. ISBN 978-1-74175-571-8.
  3. ^ Everett, J. "Calotis dentex". PlantNET-NSW Flora online. Royal Botanic Gardens Sydney. Retrieved 16 November 2024.
  4. ^ "Calotis dentex". Vascular Plants Australian Plant Name Index (APNI). Retrieved 21 September 2021.
  5. ^ Les Robinson - Field Guide to the Native Plants of Sydney, ISBN 978-0-7318-1211-0 page 132