Mirbelia trichocalyx

{{Short description|Species of plant}}

{{use dmy dates|date=July 2022}}

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| image = Mirbelia trichocalyx.jpg

| image_caption = Near Manmanning

| taxon = Mirbelia trichocalyx

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| authority = Domin{{cite web|title=Mirbelia trichocalyx|url= https://biodiversity.org.au/nsl/services/apc-format/display/115726|publisher=Australian Plant Census|access-date=10 August 2022}}

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Mirbelia trichocalyx is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a dense, erect, spiny shrub that typically grows to a height of {{cvt|15–75|cm}} and has orange or yellow and red flowers from July to October. It grows on plains, hills and breakaways in the Avon Wheatbelt, Coolgardie, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee and Swan Coastal Plain bioregions.{{FloraBase|name=Mirbelia trichocalyx|id=4104}}

The species was first formally described in 1923 by Karel Domin in the Vestnik Kralovske Ceske Spolecnosti Nauk, Trida Matematiko-Prirodevedecke from specimens he collected by Arthur Dorrien-Smith.{{cite web|title=Mirbelia trichocalyx|url= https://id.biodiversity.org.au/instance/apni/550391 |publisher=APNI|access-date=8 August 2022}}{{cite journal |last1=Domin |first1=Karel |title=New additions to the flora of Western Australia |journal=Vestnik Kralovske Ceske Spolecnosti Nauk, Trida Matematiko-Prirodevedecke |date=1923 |volume=2 |pages=28–29 |url=https://www.biodiversitylibrary.org/item/135254#page/598/mode/1up |access-date=10 August 2022}} The specific epithet (trichocalyx) means "hair-like calyx".{{cite book |last1=Sharr |first1=Francis Aubi |last2=George |first2=Alex |title=Western Australian Plant Names and Their Meanings |date=2019 |publisher=Four Gables Press |location=Kardinya, WA |isbn=9780958034180 |page=320 |edition=3rd}}

Mirbelia taxifolia is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.