Pomaderris oraria
At Wilsons Promontory
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rhamnaceae
Genus: Pomaderris
Species:
P. oraria
Binomial name
Pomaderris oraria
P. oraria subsp. oraria

Pomaderris oraria, commonly known as Bassian dogwood,[2] is a species of flowering plant in the family Rhamnaceae and is endemic to south-eastern Australia.[3] It is a compact shrub with hairy branchlets, hairy, elliptic leaves and panicles of hairy, greenish to cream-coloured or crimson-tinged flowers.

Description

Pomaderris oraria is a compact shrub that typically grows to a height of up to 2 m (6 ft 7 in), and has many branchlets with soft greyish to rust-coloured, star-shaped hairs. The leaves are elliptic to egg-shaped, the size depending on subspecies, with densely hairy stipules about 2 mm (0.079 in) long at the base, but that fall off as the leaf develops. The upper surface of the leaves is covered with bristly or felt-like hairs, the lower surface densely covered with woolly white, star-shaped hairs. The flowers are borne on the ends of branchlets or in leaf axils in panicles about as long as the leaves, each flower on a pedicel 0.5–1.0 mm (0.020–0.039 in) long. The flowers are greenish to cream-coloured or tinged with crimson and densely covered with soft, star-shaped hairs. The size of the petal-like sepals varies with subspecies and there are no petals. Flowering occurs in October and November and the fruit is a dry capsule about 3 mm (0.12 in) long.[4][5]

Taxonomy

Pomaderris oraria was first formally described in 1858 by Siegfried Reissek in the journal Linnaea: Ein Journal für die Botanik in ihrem ganzen Umfange from an unpublished description by Ferdinand von Mueller. The type specimens were collected by Charles Stuart in Tasmania.[4][6] The specific epithet (oraria) means "pertaining to the coast".[7]

In 1990, Neville Grant Walsh described two subspecies of P. oraria in the journal Muelleria, and the names are accepted by the Australian Plant Census:

Distribution and habitat

Subspecies oraria grows in near-coastal scrub in deep sand between Cape Paterson and Ninety Mile Beach in eastern Victoria and Badger Head and near Wingaroo on Flinders Island in Tasmania.[2][11] Subspecies calcicola grows on limestone soils where it is often dominant in shrubland in a few locations in eastern Victoria including the Mitchell River National Park.[9]

Conservation status

Subspecies oraria is listed as "rare" under the Tasmanian Government Threatened Species Protection Act 1995.[2]

References

  1. ^ "Pomaderris oraria". Australian Plant Census. Retrieved 24 March 2022.
  2. ^ a b c d "Threatened species link - Pomaderris oraria subsp. oraria". Government of Tasmania Department of Natural Resources and Environment. Retrieved 24 March 2022.
  3. ^ "Pomaderris oraria subsp. oraria | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2024-06-03.
  4. ^ a b c d Walsh, Neville G. (1990). "The Pomaderris oraria F.Muell. complex in Australia". Muelleria. 7 (2): 269–273. Retrieved 25 March 2022.
  5. ^ Walsh, Neville G. "Pomaderris oraria". Royal Botanic Gardens Victoria. Retrieved 25 March 2022.
  6. ^ "Pomaderris oraria". Australian Plant Name Index. Retrieved 25 March 2022.
  7. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 266. ISBN 9780958034180.
  8. ^ "Pomaderris oraria subsp. calcicola". Australian Plant Census. Retrieved 25 March 2022.
  9. ^ a b Walsh, Neville G. "Pomaderris oraria subsp. calcicola". Royal Botanic Gardens Victoria. Retrieved 25 March 2022.
  10. ^ "Pomaderris oraria subsp. oraria". Australian Plant Census. Retrieved 25 March 2022.
  11. ^ a b Walsh, Neville G. "Pomaderris oraria subsp. oraria". Royal Botanic Gardens Victoria. Retrieved 25 March 2022.