''Acacia fagonioides'' is a shrub of the genus ''
Acacia'' and the subgenus ''Pulchellae'' that is
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...
to an area of south western
Australia.
Description
The spinescent shrub typically grows to a height of
[ with hairy, intricate branchlets with axillary spines that are in length which occur singly in the nodes. The blue-green to grey-green leaves are composed of one pair of ]pinnae
The auricle or auricula is the visible part of the ear that is outside the head. It is also called the pinna (Latin for "wing" or " fin", plural pinnae), a term that is used more in zoology.
Structure
The diagram shows the shape and location ...
that are about in length that have two to four pairs of pinnule
A leaflet (occasionally called foliole) in botany is a leaf-like part of a compound leaf. Though it resembles an entire leaf, a leaflet is not borne on a main plant stem or branch, as a leaf is, but rather on a petiole or a branch of the leaf. ...
s that usually have an obovate to narrowly oblong-obovate shape and are in length and wide.[ It blooms from June to July and produces yellow flowers.][ The simple ]inflorescence
An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...
s are found over halfway up an axillary spine and have spherical flower-heads containing 13 to 25 yellow coloured flowers. The glabrous
Glabrousness (from the Latin '' glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of ...
seed pod
This page provides a glossary of plant morphology. Botanists and other biologists who study plant morphology use a number of different terms to classify and identify plant organs and parts that can be observed using no more than a handheld magnify ...
s that form after flowering have a length of and a width of and are sometimes covered in a fine white powdery coating. the turgid seeds inside have an elliptic to circular shape with a length of .[
]
Taxonomy
The shrub belongs to the '' Acacia pulchella'' group of wattles and is similar in appearance to '' Acacia epacantha''.[
]
Distribution
It is native to an area in the Wheatbelt region of Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...
where it is typically found on sandplains growing in sandy soils.Cervantes
Miguel de Cervantes Saavedra (; 29 September 1547 (assumed) – 22 April 1616 Old Style and New Style dates, NS) was an Early Modern Spanish writer widely regarded as the greatest writer in the Spanish language and one of the world's pre-emin ...
and Eneabba where it is usually a part of heathland or ''Corymbia calophylla
''Corymbia calophylla'', commonly known as marri, is a species of flowering plant in the family Myrtaceae and is endemic to the southwest of Western Australia. It is a tree or mallee with rough bark on part or all of the trunk, lance-shaped ad ...
'' forest communities.
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q9564622
fagonioides
Acacias of Western Australia
Taxa named by George Bentham
Plants described in 1842