Phebalium lowanense

Phebalium lowanense, commonly known as the Lowan phebalium,[2] is a species of slender shrub that is endemic to southern continental Australia. It is more or less covered with silvery and rust-coloured scales and has leaves appearing to be cylindrical, and yellow mauve flowers in umbels on the ends of branches.

Lowan phebalium
In the Australian National Botanic Gardens
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Phebalium
Species:
P. lowanense
Binomial name
Phebalium lowanense

Description

Phebalium lowanense is a slender shrub that typically grows to a height of 0.6–0.8 m (2 ft 0 in–2 ft 7 in) and is more or less covered with silvery or rust-coloured scales. The leaves are linear, 3–12 mm (0.12–0.47 in) long and about 1 mm (0.039 in) wide but with the edges strongly rolled under, so that they appear cylindrical. The upper surface of the leaves is glabrous and slightly scaly, and the lower surface is covered with silvery scales. The flowers are yellow and arranged in umbels on the ends of branchlets with up to six flowers, each flower on a thick pedicel 3–7 mm (0.12–0.28 in) long. The sepals are 3–4 mm (0.12–0.16 in) long and joined for about half their length, and densely covered with silvery scales and star-shaped hairs. The petals are egg-shaped, about 5 mm (0.20 in) long and 2.5 mm (0.098 in) wide, covered with silvery and rust-coloured scales on the back. Flowering occurs August to September.[3][4][5][6]

Taxonomy and naming

Phebalium lowanense was first formally described in 1957 by James Hamlyn Willis in The Victorian Naturalist from specimens he collected near the border between South Australia and Victoria in 1948.[7]

Distribution and habitat

Lowan phebalium grows in open heathy mallee woodland in a restricted area in the Murray Darling Depression biogeographic region near the South Australia-Victoria border.[2]

Conservation status

This phebalium is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999. The main threats to the speces are changed fire regimes, weed invasion, and clearing of roadsides and tracks.[2]

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References
  1. "Phebalium lowanense". Australian Plant Census. Retrieved 20 June 2020.
  2. Carter, Oberon. "National Recovery Plan for the Lowan Phebalium Phebalium lowanense" (PDF). Australian Government Department of the Environment. Retrieved 20 June 2020.
  3. Wilson, Paul G. (1970). "A Taxonomic Revision of the Genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1(1):". Nuytsia. 1 (1): 77–78. Retrieved 20 June 2020.
  4. Wilson, Paul G. "Phebalium lowanense". Australian Biological Resources Study, Department of Agriculture, Water and the Environment, Canberra. Retrieved 20 June 2020.
  5. Duretto, Marco. "Phebalium lowanense". Royal Botanic Gardens, Victoria. Retrieved 20 June 2020.
  6. "Phebalium lowanense". State Herbarium of South Australia. Retrieved 20 June 2020.
  7. "Phebalium lowanense". APNI. Retrieved 20 June 2020.
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