CLASS 1A WEEDS
CLASS 1B WEEDS
Blueweed (Vipers bugloss)
Common St. Johnswort
CLASS 2 WEEDS
CLASS 3 WEEDS
Perennial sorghum ssp. (Johnsongrass)
Phragmites (Common reed)
CLASS 4 WEEDS
Cogongrass (Japanese blood grass)
Puncturevine is an annual, spreading its multiple stems prostrate along the ground. Stems may be up to five feet long.
Leaves are compound pinnate with four to eight pairs of leaflets. Each leaflet is less than half an inch long.
A native to Europe, puncturevine is common along roadsides, in farm areas, pastures, cultivated fields, and waste areas.
Small yellow flowers have five petals and are about one-third inch wide. Bloom is in late spring and early summer.
The flowers produce hard, spiny, five-lobed fruits. At maturity the fruit breaks into tack-like structures each containing two to four seeds.