Why would you want to get rid of Henbit? It is a natural medicine that grows freely in your yard. It has many uses. Ppl should learn about nature before they go killing it off.
Fun fact: The reason Clover is seen as a weed these days is all due to marketing. When the herbicide 2,4-D was created, it was marketed as a "selective" herbicide because it didn't kill turf grasses. It did, however, indiscriminately kill all broadleaf plants it came in contact with, such as Clover. In order to profit off of the product, companies that 2,4-D launched a multi-million dollar ad campaign to convince homeowners that this was a feature, by claiming that Clover is a weed that should be eradicated. Clover is incredibly good for your yard and garden. It overcrowds real weeds (while playing nice with turf grasses), it's nitrogen fixing, and its deep roots help loosen compacted soil. It's drought, rain, flood, and snow resistant, and it can grow in most environments (e.g. USDA Hardiness Zones 3-10). Pollinators love it, and pest insects avoid it!
Glyphosate is the tool to use. Gently squeeze sprayer trigger to drip 2-3 drops down the stem off a single plant. Don't spray or touch plants you don't want harm because it certainly will