Trichome

Acacia insolita
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Acacia
Species:
A. insolita
Binomial name
Acacia insolita
Occurrence data from AVH

Acacia insolita is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.

Description[edit]

The shrub typically grows to a height of 0.1 to 1.2 metres (0.3 to 3.9 ft) and has glabrous or hairy stems and foliage. The stems have 1 to 4 mm (0.039 to 0.157 in) long stipules. The leaves have a bipinnate form and are usually persistent on mature plants. Each pinnae normally contain one pair with 2 to 12 pinnules. Each green pinnule has a lanceolate to narrowly oblong or elliptic shape and a length of 5 to 10 mm (0.20 to 0.39 in) and a width 1 to 3 mm (0.039 to 0.118 in). The narrowly linear, flat or quadrangular phyllodes have a length of 1 to 15 cm (0.39 to 5.91 in) and a width of 0.5 to 4 mm (0.020 to 0.157 in).[1] It produces yellow-cream flowers from June to September.[2] The simple inflorescences occur singly in the axils. The spherical flower-heads contain 12 to 19 cream to golden coloured flowers. After flowering linear to narrowly oblong seed pods form with a length of around 8 cm (3.1 in) and a width of 4 to 7 mm (0.16 to 0.28 in). the glossy black to dark brown seeds within the pods are around 3 to 4 mm (0.12 to 0.16 in) in length.[1]

Taxonomy[edit]

There are three recognised subspecies:

  • Acacia insolita subsp. efoliolata
  • Acacia insolita subsp. insolita
  • Acacia insolita subsp. recurva

Distribution[edit]

It is native to an area in the South West region of Western Australia where it is found on hills and ridges growing in gravelly sandy soils often containing laterite.[2] The plant along the Darling Range from around Marradong in the north to Nannup in the south.[1]

See also[edit]

References[edit]

  1. ^ a b c "Acacia insolita". World Wide Wattle. Western Australian Herbarium. Retrieved 11 May 2019.
  2. ^ a b "Acacia insolita". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.

Leave a Reply