Looks pretty nice.
Wasnt sure what to doing in the begining (ran into the nearest pretty lights) and found the cacti hard to spot.
Once i realised the money collected just looked up Wiki thats what I did for the next one - Dusty Miller and with the list in front it doesnt seem much fun or I'd learn too much, especially as the end screen implied there were 1000s to find...
I think I'd prefer clues within the game or terminology explained
And I think currently it would get pretty repetitive very quickly.
Still a good effort