Arabidella

{{Short description|Genus of flowering plants}}

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

{{Automatic taxobox

|image = Arabidella trisecta (8694899387).jpg

|image_caption =Arabidella trisecta

|taxon = Arabidella

|authority = (F.Muell.) O.E.Schulz

|type_species = Arabidella trisecta {{small|(F.Muell.) O.E.Schulz}}

}}

Arabidella is a genus of flowering plants belonging to the family Brassicaceae.{{cite web |title=Arabidella (F.Muell.) O.E.Schulz {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:12323-1 |website=Plants of the World Online |access-date=18 March 2021 |language=en}} It was first described in 1853 by Ferdinand von Mueller as a subgenus of Erysimum (in the family Cruciferae - now Brassicaceae) to give the name, Erysimum subg. Arabidella,{{APNI2|id=97942|access-date=2022-09-15|name=Arabidella}}{{cite journal|author=Mueller, F.J.H. von |date=1853|title= Diagnoses et descriptiones plantarum novarum, quas in Nova Hollandia|journal=Linnaea: Ein Journal für die Botanik in ihrem ganzen Umfange, oder Beiträge zur Pflanzenkunde|volume= 25|pages= 369|url=https://www.biodiversitylibrary.org/page/35289268}} but was elevated to genus status by Otto Eugen Schulz in 1924.{{cite journal|author=Schulz, O.E.|editor= Engler, H.G.A.|date=22 July 1924|title= Cruciferae |journal=Das Pflanzenreich |volume=86|pages= 177, fig. 33|lang=la|url=https://bibdigital.rjb.csic.es/viewer/10685/?offset=#page=179&viewer=picture&o=bookmark&n=0&q=}} The type species is Arabidella trisecta.

A molecular study in 2022 redescribed the genus and differentiated it from Lemphoria, describing Arabidella species as being shrubs or subshrubs, and rarely annual herbs, and having lower leaves divided into 2-3 linear to filiform lobes; having confluent nectar glands together with median glands, having 20-90 ovules 20–90 per ovary and having linear fruits. Species in the Lemphoria genus are annual herbs whose lower leaves are essentially pinnate, with lateral nectar glands and no median glands, and having 6-70 ovules per ovary and oblong fruits.

Its native range is Australia, and is found throughout the mainland{{Cite web |title=Arabidella (F.Muell.) O.E.Schulz |url=https://www.gbif.org/species/3040440 |access-date=2022-09-15 |website=www.gbif.org |language=en}} ("endemic in the semi-arid regions of Australia").{{cite journal|author=H.J.Hewson|title= Arabidella |journal=Flora of Australia. Australian Biological Resources Study, Department of Climate Change, the Environment and Water: Canberra| url=https://profiles.ala.org.au/opus/foa/profile/Arabidella|access-date=2022-09-15}}{{Cite web |title=Flora of Victoria: Arabidella |url=https://vicflora.rbg.vic.gov.au/flora/taxon/15c4897b-f37c-4649-b387-4a8b8c09ff49 |access-date=2022-09-15 |website=vicflora.rbg.vic.gov.au}}