Thank you for your question and excellent photos. The plants shown strongly resemble mouse-ear hawkweed (Pilosella officinarum, previously known as Hieracium pilosella),a non-native plant which is considered to be a noxious weed and/or invasive in many US states. Removal is recommended.

Mouse-ear hawkweed is a perennial weed that spreads in two ways. One is by runners sent out by mother plants that quickly make a dense colony. The other way it spreads is by seed. Hawkweed is fairly easy to control by digging up mother plants as soon as they appear. It's especially important to remove them before they flower and then set seed. Use a weeding tool to get as much of the root system as possible. If you're persistent and do this repeatedly, the plants will eventually die out.

If the area of hawkweed is too large for manual removal, the second option would be to spray an herbicide. In areas like mulched beds, you can use a non-selective herbicide product containing glyphosate, such as Roundup, to kill the entire plant. If the hawkweed is mixed in with desirable grass, you can use a broad-leaf weed control product for lawns, which will be effective at killing the hawkweed without hurting the surrounding grass. Please read all labels carefully and use caution when using any herbicide product.

I hope this helps.

~ Karin



You’re very welcome. 

~Karin