Stem

  • Prostrate; multiple stems that spread radially from crown; up to 3 ft. long (sometimes longer); highly branched, green to reddish-brown and often hairy
Photo of puncture vine plant

Leaves

  • Opposite, usually hairy, pinnate-compound, 1-2 in. long, with 3-7 pairs of leaflets; leaflets oval and 0.2-0.6 in. long; edges (margins) are smooth
Photo of puncture vine plant

Flower

  • Yellow, 0.2-0.6 in. diameter, with 5 petals; arise from leaf axils
  • Fruit is a woody bur that breaks into 5 sections (nutlets) at maturity; each nutlet has 2 stout, spines and contains 3-5 seeds
Photo of puncture vine plant

Root

  • Slender, deep taproot; can associate with nitrogen-fixing bacteria
Photo of puncture vine plant

Other

  • Often found in still or slow-moving water; not known to occur in Nevada
  • Annual; reproduces by seed
  • Also known as goathead, Mexican sandbur, Texas sandbur and tackweed; spines on fruit can cause injury to livestock and humans and can also puncture tires; foliage can be toxic to livestock 
 

Control

  • Frequent hand-removal or tillage prior to seed production
  • Two insect biological control agents are available
  • Apply 2,4-D, dicamba, glyphosate, imazapic or picloram to young, actively growing plants; chlorsulfuron or imazapyr preemergence or early post emergence
Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., Kratsch, H., Moe, A., Schultz, B. 2020, Nevada Noxious Weed Field Guide – Puncturevine, Extension, University of Nevada, Reno, Field Guide

Learn more about the author(s)

Heidi Kratsch
Heidi Kratsch
 

Also of Interest:

 
Needs Assessment for Noxious Weeds in Churchill County: Part 4 of 5 - Criteria for Herbicide Use and Selection
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 Davison, J., Powell, P., Schultz, B., and Singletary, L. 2012, University of Nevada Cooperative Extension
Nevada’s Priority Agricultural Weeds: Hoary Cress
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 B. Schultz, S. Foster 2021, Extension, University of Nevada, Reno, SP-21-03
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African mustard is a noxious weed that has been identified by the state of Nevada to be harmful to agriculture, the general public, or the environment. Learn more about this weed.
 Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., H. Kratsch, Moe, A., Schultz, B. 2020, Extension, University of Nevada, Reno, Field Guide
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Nevada Noxious Weed Field Guide – Common crupina
Common crupina is a noxious weed that has been identified by the state of Nevada to be harmful to agriculture, the general public, or the environment. Learn more about this weed.
 Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., Kratsch, H., Moe, A., Schultz, B. 2020, Extension, University of Nevada, Reno, Field Guide
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Nevada Noxious Weed Field Guide – Common St. Johnswort
Common St. Johnswort is a noxious weed that has been identified by the state of Nevada to be harmful to agriculture, the general public, or the environment. Learn more about this weed.
 Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., Kratsch, H., Moe, A., Schultz, B. 2020, Extension, University of Nevada, Reno, Field Guide
 

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