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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fabales

Familia: Fabaceae
Subfamilia: Caesalpinioideae
Tribus: Acacieae
Genus: Acacia
Species: Acacia gracillima

Acacia gracillima Tindale

Tindale, M.D. 1975. Notes on Australian taxa of Acacia No. 4. Telopea 1(1): 68–83. DOI: 10.7751/telopea19753110 Reference page. (p. 74)

Acacia gracillima is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is native to north western Australia.


The shrub or tree typically grows to a maximum height of 4 m (13 ft) and has dark red coloured minni ritchi style bark. It has angular branchlets with slightly hairy ridges. Like most species of Acacia it has phyllodes rather than true leaves. The evergreen phyllodes have a linear shape that tapers slightly towards the base and can be slightly curved. The phyllodes have a length of 3.5 to 9 cm (1.4 to 3.5 in) and a width of 0.5 to 2 mm (0.020 to 0.079 in) and are covered in yellowish hairs that lie flat on the surface. They have one prominent nerve found near the dorsal margin and another two less prominent longitudinal nerves. It blooms between May and July producing golden flowers.[1] The cylindrical flower-spikes are 2 to 4 cm (0.79 to 1.57 in) in length and densely packed with bright yellow flowers. The greenish-brown seed pods that form after flowering have a linear shape and are constricted between each seed. The villous and viscid pods are 4 to 9 cm (1.6 to 3.5 in) in length and contain longitudinally arranged seeds. The black-brown seeds have an oblong-elliptic shape with a small dark areole that is surrounded by a closed pleurogram and a pale halo.[1]

It is endemic to the Kimberley region in northern Western Australia mostly on and around the Wunaamin-Miliwundi Ranges where it is often situated on rocky steep slopes and on savannah grasslands growing in rocky quartzite based soils.[1]
See also

List of Acacia species


"Acacia gracillima". WorldWideWattle. Western Australian Herbarium. Retrieved 21 October 2019.

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