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SEM image of Acacia pollen (about 50 microns long). There are 1085 species of Acacia accepted by Plants of the World Online as at December 2024, with species native to Australia, New Guinea, Southeast Asia, Hawaii and the Mascarene Islands, and introduced to other countries.
Bipinnate leaves of Acacia dealbata Phyllodes of Acacia penninervis Flowers of Acacia retinodes. Acacia, commonly known as wattles [3] [4] or acacias, is a genus of about 1,084 species of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae.
Several characters of the foliage, seeds, seed pods, pollen, and stipules are shared by the two tribes. [32] The flower morphology of Acacia s.l. has characteristics in common with the genera Leucaena, Piptadenia, and Mimosa (tribe Mimoseae) and Enterolobium and Lysiloma (tribe Ingeae). [34]
Its pollen and free amino acids resemble that of Senegalia. Molecular studies place it sister to a monophyletic clade comprising elements of genus Acacia , and the tribe Ingeae . [ 1 ] A nectary ring is present between the stamens and ovary, in common with Acacia subg.
Acacia cana is a perennial plant species that relies on animals and insects to pollinate. [4] [10] This Australian native achieves this by producing bright yellow flowers that occur from August to October each year that fabricate pollen; it is this pollen that acts as a type of reward for the animal or insect.
Brachystegia tamarindoides, known as mu'unze and also as the mountain acacia, is a medium-sized tree with smooth grey bark, bluish-green leaves and small creamy-white flowers that produce copious amounts of pollen and nectar. It is almost always very close to upturned umbrella shaped with a partially developed flat top, making it easy to ...
The species is native to southeastern Australia as an understorey plant in eucalyptus forest. Plants are cross-pollinated by several species of honeyeater and thornbill, which visit nectaries on the phyllodes and brush against flowers, transferring pollen between them. A. pycnantha has become a weed in areas of Australia, as well as in Africa ...
Acacia omalophylla, also known as yarrany, [1] is a shrub or tree of the genus Acacia that is native to the eastern states of Australia from south central Queensland to northern parts of Victoria. [2] The plant can have the form of a tree or shrub and is typically 5 to 10 m (16 to 33 ft) in height. It flowers in winter and spring. [1]