Philotheca hispidula

Philotheca hispidula is a flowering plant in the citrus family and is endemic to New South Wales. It is a small shrub with narrow egg-shaped to wedge-shaped leaves that are glandular-wavy on the edges, and white or pale pink flowers arranged singly in leaf axils.

Philotheca hispidula
In Ku-ring-gai Chase National Park
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Philotheca
Species:
P. hispidula
Binomial name
Philotheca hispidula
Synonyms[1]
  • Eriostemon hispidulus Sieber ex Spreng.

Description

Philotheca hispidula is a shrub that tytpically grows to a height of about 1 m (3 ft 3 in) with slightly glandular-warty, finely bristly branchlets. The leaves are narrow egg-shaped to narrow wedge-shaped with the narrower end towards the base, 10–20 mm (0.39–0.79 in) long and 3–4 mm (0.12–0.16 in) wide. The flowers are usually arranged singly in leaf axils on a finely bristly peduncle 1–15 mm (0.039–0.591 in) long and a pedicel 3–5 mm (0.12–0.20 in) long. There are five semi-circular, fleshy-centred sepals about 1 mm (0.039 in) long and five broadly elliptical white or pale pink petals about 6.5 mm (0.26 in) long with a glandular keel. The ten stamens are slightly hairy. Flowering occurs in spring and the fruit is about 7 mm (0.28 in) long with a beak about 3 mm (0.12 in) long.[2][3][4]

Taxonomy

This species was first formally described in 1827 by Sprengel from an unpublished description by Franz Sieber and the description was published in Systema Vegetabilium.[5] In 2005 Paul G. Wilson changed the name to Philotheca hispidula in the journal Nuytsia.[6][7]

Distribution and habitat

Philotheca hispidula grows in forest on sandstone in the Blue Mountains and in the Sydney region.[2][3]

References
  1. "Philotheca hispidula". Australian Plant Census. Retrieved 5 August 2020.
  2. Wilson, Paul G.; Wilson, Annette J.G. (ed.) (2013). Flora of Australia (Volume 26). Canberra: Australian Biological Resources Study. p. 398. Retrieved 6 August 2020.CS1 maint: extra text: authors list (link)
  3. "Philotheca hispidula". PlantNET – NSW Flora Online. Retrieved 17 August 2018.
  4. Les Robinson (2003). Field Guide to the Native Plants of Sydney. Kangaroo Press. p. 120. ISBN 978-0-7318-1211-0.
  5. "Eriostemon hispidula". APNI. Retrieved 6 August 2020.
  6. "Philotheca hispidula". APNI. Retrieved 6 August 2020.
  7. Wilson, Paul G. (1998). "A Taxonomic Review of the genera Eriostemon and Philotheca". Nuytsia. 12 (2): 259. Retrieved 6 August 2020.
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