The stems of L. corniculatus are nearly square (USDA Forest Service, 2006), erect or sprawling on the ground, branched, either smooth or sparsely hairy, and up to one and a half feet long. (USGS-NRWRC, 2006). Numerous stems arise from a basal, well-developed crown with branches arising from leaf axils.(Frame, undated (a)) The leaves are alternate and pinnately compound. The leaflets are somewhat hairy, smooth, elliptic, rounded or pointed at the tip, and tapering to the base. They are up to 2/3 an inch long and 1/3 an inch wide, and lack stalks. The flowers are up to 2/3 an inch long, with ten stamens and superior ovaries. (USGS-NRWRC, 2006). \"Ripe pods are cylindrical, 15-30mm long, 2-3mm wide, brown to almost black, borne at right angles to the top of the peduncle (hence 'bird's-foot' trefoil as the common name). Seeds are irregularly rounded, somewhat flattened, 1.3-1.5mm long, variable in colour at maturity, olive to brownish to almost black, frequently speckled and shiny.\" (Jones and Turkington, 1986). Seeds are ejected from the pods as the pods rupture at maturity (OSU, undated), averaging 375,000 seeds per pound. (Bush, 2002).
Principal source:
Compiler: National Biological Information Infrastructure (NBII) & IUCN/SSC Invasive Species Specialist Group (ISSG)
Review:
Publication date: 2006-11-16
Recommended citation: Global Invasive Species Database (2024) Species profile: Lotus corniculatus. Downloaded from http://iucngisd.org/gisd/species.php?sc=1034 on 25-11-2024.
Chemical: L. corniculatus can be effectively controlled with general use herbicides such as: clopyralid, glyphosate, and triclopyr. (USDA Forest Service, 2006). Jones & Turkington (1986) report that morfamquat, ioxynil plus mecoprop, 2,4-D-mecoprop, dichlorprop, fenoprop, and dicamba are effective herbicide treatments on L. corniculatus, while MCPA-salt, 2,4-D-amine and ester have no effect. Acumen and basagran MCPB are considered very toxic herbicide treatments for L. corniculatus seedlings. Considerable damage to seedlings was caused by: brasoran, gesagard, and opogard; EPTC was considered an ineffective treatment. L. corniculatus showed no response to carbofuran or benomyl. (Jones & Turkington, 1986). \"Spot spraying affected areas, (after re-greening from a burn or mowing), with clopyralid + surfactant + dye. (This selective herbicide also affects native plants of the sunflower and pea families.)\" (MNDNR, 2006).