Trifolium squarrosum

{{Short description|Species of plant}}

{{Speciesbox

| image =

| genus = Trifolium

| species = squarrosum

| authority = L.

| synonyms = Trifolium dipsaceum

}}

Trifolium squarrosum is a species of annual herb in the family Fabaceae. They have a self-supporting growth form and compound, broad leaves.{{Cite web|title=Trifolium squarrosum L. - Encyclopedia of Life|url=https://eol.org/pages/703450|access-date=2022-02-04|website=eol.org}}{{Cite web |last=Mifsud |first=Stephen |date=2002-08-23 |title=Trifolium squarrosum (Squarrose Clover) : MaltaWildPlants.com - the online Flora of the Maltese Islands. |url=https://www.maltawildplants.com/FABC/Trifolium_squarrosum.php |access-date=2022-03-07 |website=www.maltawildplants.com}}

The plant is allelopathic, producing chemicals which suppress the growth of other plants nearby. This may make it useful as a companion plant, reducing the need for artificial weedkillers.{{cite journal | last1=Abou Chehade | first1=Lara | last2=Puig | first2=Carolina G. | last3=Souto | first3=Carlos | last4=Antichi | first4=Daniele | last5=Mazzoncini | first5=Marco | last6=Pedrol | first6=Nuria | title=Rye (Secale cereale L.) and squarrose clover (Trifolium squarrosum L.) cover crops can increase their allelopathic potential for weed control when used mixed as dead mulch | journal=Italian Journal of Agronomy | volume=16 | issue=4 | date=31 August 2021 | page=1869 | issn=2039-6805 | doi=10.4081/ija.2021.1869| doi-access=free | hdl=11568/1112170 | hdl-access=free }}