Quoya atriplicina

Quoya atriplicina, commonly known as saltbush foxglove,[2] is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia. It is a bushy shrub with its branches and leaves densely covered with a layer of hairs, giving them a greyish appearance. The leaves are broad-elliptic to almost circular in shape and the tube-shaped flowers are pink with purple spots inside.

Saltbush foxglove
Quoya atriplicina in Francois Peron National Park
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Quoya
Species:
Q. atriplicina
Binomial name
Quoya atriplicina
(F.Muell.) B.J.Conn & Henwood[1]
Occurrence data from ALA
Synonyms

Pityrodia atriplicina (F.Muell.) Benth.

Description

Quoya atriplicina is a shrub with many branches, growing to a height of 1–2.5 m (3–8 ft) and which has its branches densely covered short, greyish hairs. The leaves are broadly elliptic to almost round, 1–2.5 cm (0.4–1 in) long and wide with the veins often hidden by the covering of short, ash-coloured hairs.[3][4][5]

The flowers are arranged in the upper leaf axils, usually in a short, broad leafy panicle with 3 to 7 flowers on a stalk 2–4 mm (0.08–0.2 in) long and densely covered with ash-coloured hairs. The flowers are surrounded by bracts and bracteoles which are hairy on the outer surface and glabrous on the inside. The five sepals are joined to form an egg-shaped or top-shaped tube, 6–8 mm (0.2–0.3 in) long, with egg-shaped lobes on the end, 3–5 mm (0.1–0.2 in) long. The sepal tube is densely hairy on the outside and glabrous on the inside. The petals are pink with purple spots in the throat, 15–25 mm (0.6–1 in) long, forming a tube with a wide opening and five short broad lobes. The lowest lobe is very broad, more or less circular and twice as large as the others. The outside of the petal tube is hairy, although not so hairy as the sepals, and glabrous inside apart from a ring of hairs around the ovary. The four stamens are about the same length as the tube, one pair shorter than the other. Flowering occurs mainly from May to October or November and is followed by fruit which is oval in shape, 3–4 mm (0.1–0.2 in) long and densely hairy with the sepals remaining attached.[3][4][6]

Taxonomy and naming

This species was first formally described in 1859 by Ferdinand von Mueller who gave it the name Chloanthes atriplicina. The description was published in Fragmenta phytographiae Australiae from a specimen collected by Augustus Oldfield near the Murchison River.[4][7] In 1870, George Bentham changed the name to Pityrodia atriplicina[8] but in 2011, Barry Conn and Murray Henwood changed it back to Quoya atriplicina and published the change in Australian Systematic Botany.[1][9] The specific epithet (atriplicina) is derived from the name of the saltbush genus, Atriplex.[10]

Distribution and habitat

Saltbush foxglove grows in sand on sandplains mainly between Geraldton and Shark Bay in the Carnarvon, Geraldton Sandplains and Yalgoo biogeographic regions.[6][11]

Conservation

Quoya atriplicina is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[6]

References
  1. "Quoya atriplicina". APNI. Retrieved 1 December 2016.
  2. Quattrocchi, Umberto (2000). CRC World Dictionary of Plant Names (Volume 3). Boca Raton, FL: CRC Press. p. 2090. ISBN 084932677X. Retrieved 1 December 2016.
  3. Munir, Ahmad Abid (1979). "A taxonomic revision of the genus Pityrodia (Chloanthaceae)". Journal of the Adelaide Botanic Garden. 2 (1): 120–123.
  4. von Mueller, Ferdinand; Bentham, George (1870). Flora Australiensis (Volume 5). New York: Cambridge University Press. pp. 52–53. ISBN 9781108037426. Retrieved 1 December 2016.
  5. Corrick, Margaret G.; Fuhrer, Bruce A. (2009). Wildflowers of southern Western Australia (3rd ed.). Kenthurst, N.S.W.: Rosenberg Publishing. p. 44. ISBN 9781877058844.
  6. "Quoya atriplicina". FloraBase. Western Australian Government Department of Parks and Wildlife.
  7. "Chloanthes atriplicina". APNI. Retrieved 1 December 2016.
  8. "Pityrodia atriplicina". APNI. Retrieved 23 November 2017.
  9. Conn, Barry J.; Henwood, Murray J.; Streiber, Nicola (2011). "Synopsis of the tribe Chloantheae and new nomenclatural combinations in Pityrodia s.lat. (Lamiaceae)". Australian Systematic Botany. 24 (1): 8. doi:10.1071/SB10039.
  10. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 374.
  11. Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora : a descriptive catalogue. Perth: Wildflower Society of Western Australia. p. 213. ISBN 0646402439.
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