Notes

I think of this as one of the worst weeds when trying to reseed an area. It germinates early crowding everything out and then waits until summer rain to produce abundant pollen and seeds. And then in the fall it can beome a tumbleweed further spreading it seeds.

Notes

Typically not very aggressive.

Notes

A prostrate annual that can form large showy stands of pink/purple flowers early in the spring but can overcome native seedlings if too thick.

Notes

An annual that seems harmless until it sets seed.

Notes

A spiny annnual sometimes called goatheads but different than Puncture Vine (Tribulus terrestris) also called goatheads.

Notes

Annual that becomes a tumbleweed in the winter. Taprooted with large rosette of basal leaves.