Biology:Pultenaea arida

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Short description: Species of flowering plant

Pultenaea arida
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Pultenaea
Species:
P. arida
Binomial name
Pultenaea arida
E.Pritz.[1]

Pultenaea arida is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a low, spindly, spreading shrub with small, flat, hairy leaves and yellow, red or orange flowers.

Description

Pultenaea arida is a spindly, prostrate or spreading shrub that typically grows to a height of 10–30 cm (3.9–11.8 in) with hairy stems. The leaves are flat, 4–6.5 mm (0.16–0.26 in) long and about 3 mm (0.12 in) wide and hairy with stipules 1.5–2.5 mm (0.059–0.098 in) long at the base. The flowers are yellow, red or orange with spots and blotches of yellow, red or orange. Each flower is borne on a pedicel 1–4.5 mm (0.039–0.177 in) long with hairy bracteoles 1–1.5 mm (0.039–0.059 in) long at the base. The sepals are 5–6.5 mm (0.20–0.26 in) long and hairy. The standard petal and wings are 5–6.5 mm (0.20–0.26 in) long and the keel 5–7 mm (0.20–0.28 in) long. Flowering occurs from September to December and the fruit is an oval pod.[2]

Taxonomy and naming

Pultenaea arida was first formally described in 1904 by Ernst Georg Pritzel in the Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie.[3] The specific epithet (arida) means "arid or dry".[4]

Distribution and habitat

This pultenaea grows on flats in sandy or clay soils in the Coolgardie and Mallee biogeographic regions in the south of Western Australia.[2]

Conservation status

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

References

  1. "Pultenaea arida". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/101823. 
  2. 2.0 2.1 2.2 "Pultenaea arida". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/4163. 
  3. "Pultenaea arida". APNI. https://id.biodiversity.org.au/instance/apni/529618. 
  4. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 137. ISBN 9780958034180. 

Wikidata ☰ Q15525449 entry