During our workshop at the UC Davis herbarium/Center for Plant Diversity, we identified the following plants using the 2nd edition of The Jepson Manual:
1. Malva nicaensis (Malvaceae)
2. Trifolium incarnatum (Fabaceae)
3. Brassica rapa (Brassicaceae)
4. Erigeron bonariensis (Asteraceae)
Someone moved Conyza into Erigeron, which threw us for a loop!