Hello and welcome
It helps to add your location and zone to your profile.
If you live in the US you can look up common weeds that are in your state by googling weed id + state+ edu
This is what comes up for me when I look up handbook of Hawaiian weeds
https://www.flickr.com/photos/uhmuseum/ ... 041949833/
These are from the Tennessee extention service.
https://www.tennesseeturfgrassweeds.org/ ... ed-ID.aspx
Happy gardening in Hawaii. Gardens are where people grow.