NEW RECORDS OF WETLAND AND RIPARIAN PLANTS IN SOUTHERN CALIFORNIA, WITH RECOMMENDATIONS AND ADDITIONS TO THE NATIONAL LIST OF PLANT SPECIES THAT OCCUR IN WETLANDS

摘要

Panicum coloration, Panicum virgatwn, and Setaria megaphylla are exotic species reported for the first time for California. The following new or noteworthy records of native and non-native vascular plants are reported from wetland and riparian habitats in coastal southern California: Amaranthm blitum subsp. emarginatus, Atriplex polycarpa, Bacopa monnieri, Beta vulgaris subsp. marítima, Chloris trúncala Ehrharta erecta, Elytrigia repens, Epilobium brachycarpum, Eriochloa aristata, Glinus radiatus,Limonium ramosissimum, Limonium indet On-cosiphon piluliferum, Panicum dichotomiflorum subsp. dichotomiflorum, Paspalum urvillei, Psilocarphus chilensis, Salvinia molesta, and Setaria adhaerens. Of these, Amaranthus blitum subsp. emarginatus, Beta vulgaris subsp. marítima, Chloris trúncala, Ehrharla erecta, Limonium ramosissimum, Oncosiphon piluliferum, Panicum coloratum, Panicum virgatum, Psilocarphus chilensis, Salvinia molesta, Setaria adhaerens and Setaria megaphylla are facultative wetland plantsin California herein proposed for addition to the National List of Plants that Occur in Wetlands. Supplemental information is also provided to revise the current wetland indicator status for Epilobium brachycarpum, Glinus radiatus, and Paspalum urvillei. The new records presented herein suggest that focused floristic studies are needed to thoroughly document the flora of wetland and riparian communities in the South Coast region. In addition, watershed urbanization and exotic species established in suburban communities and in the wildland-urban interface have significantly modified the character of the native vegetation and integrity of many wetland and riparian ecosystems in coastal southern California.