Hi again @alejzp! To get verification of plants I'm having trouble identifying for sure, I would ordinarily, turn to local wildflower organizations, native plant societies, botanical gardens, master gardeners - you get the idea. They will be more familiar with the plants in CR. To help you more, armchair botanists (such as myself!) need lots more specifics about the plant's characteristics, pictures from lots of angles, full out nerdy stuff! ? The specialists in your area would look at your pics and say "oh yeah- that's a such-and-such".As an update to my previous message I kept reading and I think I found the one weed I have the most is know as tropical chickweed (Drymaria cordata) and seems to be even safe for human consumption... but have not found anything regarding feedable to sulcatas or tortoises though chickweed in general is good to feed... I am leaving a link to a good reference to the tropical chickweed in case anybody knows if it can be fed to sulcatas:
https://weeds.brisbane.qld.gov.au/weeds/tropical-chickweed
I am attaching again the picture for reference.
Thanks in advance...
I did some poking around to find such a group for you and found a couple of things that may help. On this page is a list of books on local flora. Also, I found this App Will Automatically Identify Native Plants of Costa Rica. I can't make any representations about these things, but they may get you started.
Once that identification is made, we can help better from the "can my tort eat this?" perspective. Thank you for caring about your tort so much - this is a lot of work, I know. Keep at it.