Wedge guinea flower
Ku-ring-gai Chase National Park, Australia
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Dilleniales
Family: Dilleniaceae
Genus: Hibbertia
Species:
H. diffusa
Binomial name
Hibbertia diffusa

Hibbertia diffusa, commonly known as wedge guinea flower,[2] is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern Australia. It is a prostrate to low-lying shrub with glabrous stems, egg-shaped to lance-shaped leaves with the narrower end towards the base, and bright yellow flowers arranged on the ends of branchlets, with twenty to twenty-five stamens arranged around two or three carpels.

Description

Hibbertia diffusa is a prostrate to low-lying shrub that typically grows to a height of up to 30 cm (12 in) and usually has glabrous stems. The leaves are egg-shaped to lance-shaped with the narrower end towards the base, 4–30 mm (0.16–1.18 in) long and 3–9 mm (0.12–0.35 in) wide on a short petiole. The flowers are sessile and mostly arranged on the ends of branchlets,the five sepals 6–8 mm (0.24–0.31 in) long and the five bright yellow petals 7–10 mm (0.28–0.39 in) long. There are twenty to twenty-five stamens arranged in groups around the two or three glabrous carpels. Flowering occurs from September to November.[2][3][4]

Taxonomy

Hibbertia diffusa was first formally described in 1817 by Augustin Pyramus de Candolle in his Regni Vegetabilis Systema Naturale from an unpublished description by Robert Brown.[5][6]

Distribution and habitat

Wedge guinea flower grows in open forest on the coast and ranges of south-eastern Queensland, New South Wales and far north-eastern Victoria.[2][3]

References

  1. ↑ "Hibbertia diffusa". Australian Plant Census. Retrieved 23 May 2021.
  2. 1 2 3 "Hibbertia diffusa". Royal Botanic Garden Sydney. Retrieved 23 May 2021.
  3. 1 2 Toelken, Hellmut R. "Hibbertia diffusa". Royal Botanic Gardens Victoria. Retrieved 23 May 2021.
  4. ↑ Les Robinson - Field Guide to the Native Plants of Sydney, ISBN 978-0-7318-1211-0 pages 159–160
  5. ↑ "Hibbertia diffusa". APNI. Retrieved 23 May 2021.
  6. ↑ de Candolle, Augustin P. (1817). Regni Vegetabilis systema naturale. Paris. p. 429. Retrieved 23 May 2021.
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