Two additional nomenclatural changes are required for Poaceae treatments that will appear in the second edition of The Jepson Manual: Higher Plants of California. They are Elymus x gouldii and Festuca temulenta. The former corrects a violation of the rule in the International Code of Botanical Nomenclature involving the naming of hybrids, and the latter involves a widely occurring non-native grass in California traditionally assigned to Lolium.
Smith, James P. Jr. and Columbus, J. Travis
"Nomenclatural Changes for Some Grasses in California. II.,"
Aliso: A Journal of Systematic and Evolutionary Botany:
1, Article 6.
Available at: https://scholarship.claremont.edu/aliso/vol29/iss1/6