Online help with IDs
--- Prickly Pears ------------
Opuntia Web is by far the most comprehensive site for Opuntia, maintained by Joe Shaw and Dave Ferguson. Here are some references for the species:
https://www.opuntiads.com/category/texas-opuntias/
https://www.opuntiads.com/opuntia-macrorhiza/ Praire Pricklypear
https://www.opuntiads.com/opuntia-sanguinocola/
--- Centaurium ----------------
Ryan McDaniel's Centaurium
https://www.inaturalist.org/journal/rymcdaniel/66657-zeltnera-texensis-and-centaurium-species-in-texas
--- Venus Looking Glass -----------------------
The long slender plant I found in the crack in the pavement of Laneview Rd, near Lake Bardwell
https://drive.google.com/file/d/1G1pro3tLp9Lp_9dFrjo9pBGTf0xhte_2/view
- Obsolete as of 2023 City Nature Challenge. Nobody seemed to identify venus looking glass
--- broom rape
https://forum.inaturalist.org/t/phelipanche-nana-vs-ramosa-vs-mutelii/9465
nana - dwarf sorrel, I've assumed everything is.
ramosa - Hemp broomrape
mutelii -
--- Lisa's slippery vs american elm
https://www.inaturalist.org/posts/20573-the-elm-project-part-2-american-elm-and-slippery-elm-updated-for-2020#summary
- She also collects guides, including some here.
--- Texas vs Englemann's thistle
https://perennialecology.wordpress.com/2017/08/13/the-good-the-bad-the-ugly-a-guide-to-distinguishing-texas-thistles/
- could not parse through eflora descriptions. 2 authors with distinct descriptions
--- Crotons -------------------------------------------
Lindheimers Doveweed (Croton lindheimeri) vs Hogwort (Croton capitatus) -----------------
https://www.inaturalist.org/observations/123207269
it says to see Flora NC Texas
