Acacia undulifolia

Life-forms

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 undulifolia
Name

Acacia undulifolia A.Cunn. ex G.Lodd., 1829
Synonyms

Racosperma undulifolium Pedley (2003) [Homotypic synonym]
Acacia undulifolia C.Fraser ex G.Lodd. (1829) [Nom. nudum]
Acacia undulifolia A.Cunn. ex Loudon (1830) [Nom. nudum]
Acacia undulifolia A.Cunn. ex G.Don (1832) [nom. illeg. (homonym)]

Distribution
Native distribution areas:
Acacia undulifolia

Continental: Australasia
Regional: Australia
New South Wales

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Cunningham, A. in Loddiges, G., 1829. Botanical Cabinet 16: t. 1544.

Links

Govaerts, R. et al. 2020. Acacia undulifolia in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 17. Reference page.
International Plant Names Index. 2019. Acacia undulifolia. Published online. Accessed: Aug 17 2019.
Tropicos.org 2019. Acacia undulifolia. Missouri Botanical Garden. Published online. Accessed: 17 Aug 2019.
Catalogue of Life: 2021 Annual Checklist
Acacia undulifolia – Taxon details on World Wide Wattle. .
USDA, ARS, Germplasm Resources Information Network. Acacia undulifolia in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names

Acacia undulifolia is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to eastern Australia.

Description

The open shrub typically grows to a height of 2 to 3 metres (7 to 10 ft). It usually has few main branches that are erect to inclined and curved to straight. It has reddish-brown or sometimes green branchlets that are ridged and angled. Like most species of Acacia it has phyllodes rather than true leaves. They are green to grey-green or blue-green and slightly asymmetric and flat or sometimes convex or broadly elliptic in shape. The phyllodes are 17 to 25 mm (0.67 to 0.98 in) in length and 12 to 16 mm (0.47 to 0.63 in) wide and sparsely hairy or glabrous.[1] It blooms between October and November[2] and produces simple inflorescences with spherical flower-heads that have a diameter of 8 to 9 mm (0.31 to 0.35 in) and contain 20 to 30 pale yellow flowers. The sub-glossy to blackish seed pods that form after flowering have a narrowly oblong to oblong shape and are quite straight with a length of 40 to 80 mm (1.6 to 3.1 in) and a width of 16 to 24 mm (0.63 to 0.94 in).[1]
Taxonomy

The specific epithet is in reference to the undulate phyllodes, which is particularly noticeable on new growth. The plant resembles Acacia piligera.[2]
Distribution

It is native to an area in New South Wales where it has a scattered distribution over the upper Blue Mountains from the north near Mount Monundilla to the south around the Megalong Valley and as far west as the Cox River extending to the east as far as the Watagan Range and Bucketty where it usually grows in gravelly sandy loam soils that have originated from sandstones.[1]
See also

List of Acacia species

References

"Acacia undulifolia". World Wide Wattle. Western Australian Herbarium. Retrieved 12 June 2019.
"Acacia undulifolia A.Cunn. ex G.Lodd". PlantNet. Royal Botanic Garden, Sydney. Retrieved 25 August 2019.