Scientific Namesort icon Common Name Type Subtype Extent Risk of Introduction First Source
Amaranthus retroflexus redroot amaranth plant herbaceous widespread n/a (already in CA) Weeds of CA
Amaranthus hybridus slim amaranth plant herbaceous widespread n/a (already in CA) Weeds of CA
Amaranthus albus prostrate pigweed plant herbaceous widespread n/a (already in CA) Weeds of CA
Alyssum murale yellowtuft plant herbaceous not present moderate OR Weed List
Alyssum corsicum yellowtuft plant herbaceous not present moderate OR Weed List
Alternanthera sessilis sessile joyweed plant herbaceous not present moderate USDA Plant/Pest
Alternanthera philoxeroides alligator weed plant herbaceous limited n/a (already in CA) Cal-IPC list
Alopecurus myosuroides blackgrass plant grass limited n/a (already in CA) WA Weed List
Allium vineale wild garlic plant herbaceous limited n/a (already in CA) CDFA
Allium paniculatum panicled onion plant herbaceous limited n/a (already in CA) CDFA
Allaria petiolata garlic mustard plant herbaceous not present high OR Weed List
Alhagi maurorum camelthorn plant woody limited n/a (already in CA) NV Weed List
Alectra spp. alectra plant herbaceous not present moderate USDA Plant/Pest
Albizia lophantha plume acacia plant woody limited n/a (already in CA) Cal-IPC list
Ailanthus altissima tree-of-heaven plant woody widespread n/a (already in CA) Cal-IPC list
Agrostis stolonifera creeping bentgrass plant grass limited n/a (already in CA) Cal-IPC list
Agrostis avenacea Pacific bentgrass plant grass limited n/a (already in CA) Cal-IPC list
Ageratina adenophora croftonweed plant herbaceous limited n/a (already in CA) Cal-IPC list
Aeschynomene rudis rough jointvetch plant woody limited n/a (already in CA) CDFA
Aeginetia spp. aeginetia plant herbaceous not present moderate USDA Plant/Pest
Aegilops triuncialis barb goatgrass plant grass widespread n/a (already in CA) CDFA
Aegilops ovata ovate goatgrass plant grass limited n/a (already in CA) CDFA
Aegilops cylindrica jointed goatgrass plant grass widespread n/a (already in CA) WA Weed List
Acroptilon repens Russian knapweed plant herbaceous widespread n/a (already in CA) MT Weed List
Achnatherum brachychaetum punagrass plant grass limited n/a (already in CA) CDFA
Acaena pallida pale biddy-biddy plant herbaceous limited n/a (already in CA) CDFA
Acaena novae-zelandiae biddy-biddy plant herbaceous limited n/a (already in CA) CDFA
Acacia paradoxa kangaroothorn plant woody limited n/a (already in CA) CDFA
Acacia melanoxylon black acacia plant woody limited n/a (already in CA) Cal-IPC list
Acacia dealbata silver wattle plant woody limited n/a (already in CA) Cal-IPC list
Abutilon theophrasti velvet leaf plant herbaceous widespread n/a (already in CA) Weeds of CA