JOURNAL #4
The plants that I observed at Marsh Park consisted of Morning glories (nonnative), Black willow, Smartweed (assuming it is Periscaria amphibia), Horseweed, Mulberries (assuming it is Morus alba: nonnative), Ashes (assuming it is Texas ashes: native in the United States), Annual bur-sage, Tree tobacco (introduced), Flatsedges (assuming it is Cyperus difformis: nonnative), Toyon, Agaricomycetes (assuming it is Phellinus), and Mustards (nonnative). Compared to all the other locations, this had the most diversity. This does not come as a surprise since Marsh Park is a man-made area where people throw random stuff into the river. Also, the ratio for between native and nonnative plants is 7: 5.
Reference:
https://www.calflora.org/cgi-bin/specieslist.cgi?namesoup=+Ipomoea&countylist=any&plantcomm=any&format=photos&orderby=taxon
http://www.calflora.org/cgi-bin/specieslist.cgi?where-genus=Persicaria
https://www.inaturalist.org/taxa/76907-Erigeron-canadensis
https://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=5691
https://www.inaturalist.org/taxa/57909-Ambrosia-acanthicarpa
https://www.inaturalist.org/taxa/121006-Fraxinus-texensis
http://www.calflora.org/cgi-bin/specieslist.cgi?where-genus=Cyperus
https://www.inaturalist.org/taxa/53405-Heteromeles-arbutifolia
http://www.calflora.org/cgi-bin/specieslist.cgi?where-genus=Brassica
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