Here in Australia, I know a plant is an invasive species when inaturalist/Seek can identify it :) It's not good with native Australian plants so I'd love to build a local solution. Shame it's closed.
I've found it's quite good for Aussie plants, although you do need to have the right photographs for the organism type in question. Generally you want close-ups of flowers, leaves and seedpods, bark and general whole-plant images for flowering plants. If you just provide a whole-plant image it will often fail, this is presumably partly because without details they look too similar, and partly because they reduce the resolution to 2048 pixels maximum before storing it for evaluation. Relatively speaking it currently sucks for grasses, some plants and ferns, many fungi, and almost all insects.
