Spikes cover the puncturevine fruit

https://www.flickr.com/photos/starr-environmental/9049850905/in/photolist-geTHV6-oPb6x8-egW2Po-egQ1Zn-oEoHx-6TRdKQ-6TMcCT-6TMbBi-5g3MWo-dfDb7H-98vcN2-5fYrQZ-5fYtYV-5fYtqp-5g3QnE-sRqvKo-fHjxEH-sR7RYA-hrRau8-hrQ4uh-hrPX9F-eWhzuY-eWgrmo-eW53je-eNCPVG-eMUhCf-eMUhby-eMGRoa-eMGRa2-eMGQVM-eMUgiN-eMGQsn-f49aeD-f499xB-f497hi-f3W3kR-f4TFiJ-eW53Ve-eMGS7V-eMGRS6-f4oroJ-f49bki-f498EM-f497YF-hrPWep-9SfudJ-phgSjF-oApa9n-oAoEXJ-oAp92n/