# Acacia pendula

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Species of legume

Weeping myall Scientific classification Kingdom: Plantae Clade: Embryophytes Clade: Tracheophytes Clade: Spermatophytes Clade: Angiosperms Clade: Eudicots Clade: Rosids Order: Fabales Family: Fabaceae Subfamily: Caesalpinioideae Clade: Mimosoid clade Genus: Acacia Species: A. pendula Binomial name Acacia pendula A.Cunn. ex G.Don, 1832 Occurrence data from AVH

***Acacia pendula***, commonly known as the **weeping myall**,[1] **true myall**, **myall**, **silver-leaf boree**,[2] **boree**,[1] and **nilyah**,[3] is a species of [wattle](/source/Acacia), which is native to [Australia](/source/Australia). The 1889 book *The Useful Native Plants of Australia* records that common names included "Weeping Myall", "True Myall", and [Indigenous people](/source/Indigenous_Australians) of western areas of New South Wales and Queensland referred to the plant as "Boree" and "Balaar".[4]

## Description

*Acacia pendula* bark

The tree typically grows to a height of 5 to 13 m (16 to 43 ft)[1] and a width of 4 to 6 m (13 to 20 ft)[5] and has an erect, pendulous to spreading habit. It has hard fissured grey bark on the trunk and limbs. It has pendulous branches with angled or flattened branchlets that are covered in short fine hairs but becomes [glabrous](/source/Glabrous_(botany)) as it matures. The grey-green narrow [phyllodes](/source/Phyllode) are about 4 to 14 cm (1.6 to 5.5 in) in length and 3 to 10 mm (0.12 to 0.39 in) wide and have a narrowly elliptic to very narrowly elliptic or sometimes narrowly oblong-elliptic shape and can be straight or curved The phyllodes have many longitudinal indistinct veins, a subacute apex with [mucro](https://en.wiktionary.org/wiki/mucro) and one gland near base.[1] It flowers in the summer and autumn from around November to May and produces yellow flowers. The [inflorescences](/source/Inflorescence) mostly occur in groups of two to five on an axillary axis. The spherical flower heads have a diameter of 3 to 7 mm (0.12 to 0.28 in) and contain 10 to 20 bright yellow flowers. The papery to leathery green [seed pods](/source/Seed_pod) that form after flowering are flat and straight to strongly curved and age to a brown colour. The pods are irregularly constricted between each seed and are 3 to 9 cm (1.2 to 3.5 in) in length and 10 to 20 mm (0.39 to 0.79 in).[1] Seeds are often collected between October and January.[3]

## Taxonomy

The species was formally described by the botanist [George Don](/source/George_Don) in 1832 as part of the work *A General History of Dichlamydeous Plants*. It was reclassified as *Racosperma pendulum* by [Leslie Pedley](/source/Leslie_Pedley) in 1987 then transferred back to genus *Acacia* in 2014.[6] The [specific epithet](/source/Botanical_name) is in reference to the pendulous habit of the tree.[1] It is derived from the [Latin](/source/Latin) word *pendere* meaning 'to hang down'.[3]

## Distribution

It occurs naturally in dry [outback](/source/Outback) areas in [Queensland](/source/Queensland), [New South Wales](/source/New_South_Wales), and [Victoria](/source/Victoria_(Australia)). In New South Wales the tree has a disjunct but widespread distribution throughout inland areas, usually to the west of the upper [Hunter Valley](/source/Hunter_Valley). It is often situated on major river floodplains growing as part of woodlands, sometimes as the dominant species, where it grows well in heavy clay soils.[1] In all states it is found to the west of the [Great Dividing Range](/source/Great_Dividing_Range) growing in alluvial soils consisting of sand, gravel, silt and clay in areas that receive 400 to 600 mm (16 to 24 in) of annual rainfall.[3]

## Uses and cultivation

In *The Useful Native Plants of Australia* it was noted that "Stock are very fond of the leaves of this tree, especially in seasons of drought, and for this reason, and because they eat down the seedlings, it has almost become exterminated in parts of the colonies."[4]

The tree is available commercially as seedlings[5] or in seed form and has many desirable properties in areas of low rainfall since it is [drought tolerant](/source/Drought_tolerant). It is also frost tolerant and will grow in heavy clay soils. It is useful as a shelter-tree or as a windbreak and attracts native birds, particularly parrots who use the seeds as a food source. The rhizobium nodules in the roots also assist in [fixing nitrogen](/source/Nitrogen_fixing) into the soil. The blue-grey foliage and weeping habit make it popular both domestically and in overseas cultivation, including in Iran and Kuwait.[3]

## See also

- [List of *Acacia* species](/source/List_of_Acacia_species)

## References

1. ^ [***a***](#cite_ref-pnet_1-0) [***b***](#cite_ref-pnet_1-1) [***c***](#cite_ref-pnet_1-2) [***d***](#cite_ref-pnet_1-3) [***e***](#cite_ref-pnet_1-4) [***f***](#cite_ref-pnet_1-5) [***g***](#cite_ref-pnet_1-6) ["*Acacia pendula* A.Cunn. & G.Don"](http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Acacia~pendula). *PlantNet*. Royal Botanic Garden, Sydney. Retrieved 4 August 2019.

1. **[^](#cite_ref-lucid_2-0)** ["*Acacia pendula*"](https://keys.lucidcentral.org/keys/v3/scotia/key/Plants%20and%20Fungi%20of%20south%20western%20NSW/Media/Html/Acacia_pendula.htm). *Factsheet*. Lucid Central. Retrieved 4 August 2019.

1. ^ [***a***](#cite_ref-anbg_3-0) [***b***](#cite_ref-anbg_3-1) [***c***](#cite_ref-anbg_3-2) [***d***](#cite_ref-anbg_3-3) [***e***](#cite_ref-anbg_3-4) ["*Acacia pendula* Weeping Myall, Boree, Nilyah, Balaar"](https://www.anbg.gov.au/gnp/interns-2007/acacia-pendula.html). *Growing Native Plants*. [Australian National Botanic Gardens](/source/Australian_National_Botanic_Gardens). Retrieved 4 August 2019.

1. ^ [***a***](#cite_ref-Maiden_4-0) [***b***](#cite_ref-Maiden_4-1) J. H. Maiden (1889). [*The useful native plants of Australia : Including Tasmania*](https://primo-slnsw.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=SLNSW_ALMA21105097830002626&context=L&vid=SLNSW&search_scope=EEA&tab=default_tab&lang=en_US). Turner and Henderson, Sydney.

1. ^ [***a***](#cite_ref-William_5-0) [***b***](#cite_ref-William_5-1) ["*Acacia pendula* Weeping Myall, Boree"](https://www.advancedtrees.com.au/tree-index-2/advanced-evergreens/native-evergreens/167-acacia-pendula.html). Mt William Advanced Tree Nursery. Retrieved 4 August 2019.

1. **[^](#cite_ref-6)** ["*Acacia pendula* A.Cunn. ex G.Don"](https://bie.ala.org.au/species/http://id.biodiversity.org.au/node/apni/2898562#names). *Atlas of Living Australia*. [Global Biodiversity Information Facility](/source/Global_Biodiversity_Information_Facility). Retrieved 4 August 2019.

## External links

[Wikispecies](/source/Wikispecies) has information related to ***[Acacia pendula](https://species.wikimedia.org/wiki/Special:Search/Acacia_pendula)***.

Wikimedia Commons has media related to [Acacia pendula](https://commons.wikimedia.org/wiki/Category:Acacia_pendula).

- [Australian National Botanic Gardens: *Acacia pendula*](http://www.anbg.gov.au/acacia/species/A-pendula.html)

- [*Department of Environment and Climate Change* Threatened Species - Weeping Myall population in the Hunter catchment - profile](https://web.archive.org/web/20060210000737/http://www.threatenedspecies.environment.nsw.gov.au/tsprofile/profile.aspx?id=10967)

- ["*Acacia pendula*"](https://biodiversity.org.au/apni.name/13826). *[Australian Plant Name Index](/source/Australian_Plant_Name_Index) (APNI), IBIS database*. Canberra, Australian Capital Territory: Centre for Plant Biodiversity Research, Australian Government.

Taxon identifiers Acacia pendula Wikidata: Q2709050 Wikispecies: Acacia pendula APNI: 68266 Calflora: 12162 CoL: 8PTC Ecocrop: 2678 EoL: 688908 EPPO: ACAPD FoAO2: Acacia pendula GBIF: 2979494 GRIN: 953 iNaturalist: 139857 IPNI: 471106-1 IRMNG: 10178010 ITIS: 819857 IUCN: 19892147 NCBI: 1173660 NSWFlora: Acacia~pendula Open Tree of Life: 3918417 Plant List: ild-547 PLANTS: ACPE8 POWO: urn:lsid:ipni.org:names:471106-1 SANBI: 389-367 Tropicos: 13024331 VicFlora: 0bb0c432-ba44-44e9-ae3d-098f9202fc47 WFO: wfo-0000208640

Authority control databases: National Israel

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Adapted from the Wikipedia article [Acacia pendula](https://en.wikipedia.org/wiki/Acacia_pendula) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Acacia_pendula?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.