Phebalium obovatum

Phebalium obovatum is a species of spreading shrub that is endemic to Western Australia. It has thick, egg-shaped or elliptical leaves densely covered with silvery scales on the lower side and white flowers arranged in umbels with silvery or rust-coloured scales on the back.

Phebalium obovatum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Phebalium
Species:
P. obovatum
Binomial name
Phebalium obovatum
(Paul G.Wilson) Paul G.Wilson[1]
Synonyms[1]

Phebalium lepidotum var. obovatum Paul G.Wilson

Description

Phebalium obovatum is a spreading shrub that typically grows to a height of 0.2–1.0 m (7.9 in–3 ft 3.4 in). The leaves are thick, egg-shaped to elliptical, about 5 mm (0.20 in) long and 1.5–2 mm (0.059–0.079 in) wide. The leaves are glossy on the upper surface, covered with silvery scales on the lower surface. The flowers are borne in umbels, each flower on a scaly pedicel 1.5–2.5 mm (0.059–0.098 in) long. The five sepals are 2–2.5 mm (0.079–0.098 in) long, joined for half their length and covered with silvery to rust-coloured scales on the outside. The petals are white, elliptical, about 4 mm (0.16 in) long with silvery to rust-coloured scales on the back. Flowering occurs from September to December.[2][3][4]

Taxonomy

This species was first formally described in 1970 by Paul Wilson in the journal Nuytsia, and was given the name Phebalium lepidotum var. obovatum.[4][5] In 1998, following "field studies over the past thirty years", Wilson raised the variety to species status as Phebelium obovatum.[6][7]

Distribution and habitat

Phebalium obovatum grows in heath or mallee woodland in the Ravensthorpe district.[2][3]

Conservation status

This phebalium is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[2]

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References
  1. "Phebalium obovatum". Australian Plant Census. Retrieved 21 June 2020.
  2. "Phebalium obovatum". FloraBase. Western Australian Government Department of Parks and Wildlife.
  3. Wilson, Paul G. "Phebalium obovatum". Australian Biological Resources Study, Department of Agriculture, Water and the Environment, Canberra. Retrieved 21 June 2020.
  4. Wilson, Paul G. (1970). "A Taxonomic Revision of the Genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1(1):". Nuytsia. 1 (1): 74. Retrieved 21 June 2020.
  5. "Phebalium lepidotum var. obovatum". APNI. Retrieved 21 June 2020.
  6. "Phebalium obovatum". APNI. Retrieved 21 June 2020.
  7. Wilson, Paul G. (1998). "New species and nomenclatural changes in Phebalium and related genera (Rutaceae)". Nuytsia. 12 (2): 285–286. Retrieved 21 June 2020.
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