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Used by the Orange County Chapter of CNPS to monitor a dynamic list of Emergent Invasive Plants within Orange County. As defined by OC CNPS, these are non-native plants that are recently arrived in OC or with very few populations and are believed to pose a significant threat to our natural areas. More information can be found at www.occnps.org, under Invasive Plants or by contacting invasives@occnps.org. |
22 PLANTS |
Aegilops triuncialis Barbed goatgrass
invasive non-native
Annual grass ![]() 2019 Jim Xerogeanes
![]() 2008 Steve Matson
![]() 2018 Scott Oneto
|
Brassica fruticulosa Mediterranean cabbage
non-native
Annual herb ![]() 2018 Keir Morse
![]() 2018 Keir Morse
![]() 2018 Keir Morse
|
Cenchrus echinatus Southern sandbur
invasive non-native
Annual grass ![]() 2017 Ron Vanderhoff
![]() 2018 michelle peruzzi
![]() 2017 Fred Melgert / Carla Hoegen
|
Cenchrus longispinus Mat sandbur
invasive non-native
Annual grass ![]() 2018 James Bailey
![]() 2018 Ron Vanderhoff
![]() 2018 Ron Vanderhoff
|
Centaurea benedicta Blessed thistle
non-native
Annual herb ![]() 2020 Diane Etchison
![]() 2013 Travis Kegel
![]() 2021 Joe Woods
|
Centaurea diluta North African knapweed, Star thistle
invasive non-native
Annual herb ![]() 2020 Ron Vanderhoff
![]() 2022 Ron Vanderhoff
![]() 2018 James Bailey
|
Centaurea solstitialis Barnaby's thistle, Yellow star thistle
invasive non-native
Annual herb ![]() 2022 Cynthia Powell
![]() 2019 Arlee Montalvo
![]() 2022 Mary Herr
|
non-native
![]() 2018 Josie Bennett
![]() 2018 Ron Vanderhoff
![]() 2020 Ron Vanderhoff
|
Dipogon lignosus Okie bean
invasive non-native
Perennial herb, Vine ![]() 2021 Ron Vanderhoff
![]() 2022 Alan Kaufmann
![]() 2021 Ron Vanderhoff
|
Ehrharta calycina Perennial veldt grass, Perennial veldtgrass
invasive non-native
Perennial grass ![]() 2020 David Greenberger
![]() 2019 Ron Vanderhoff
![]() 2018 Ron Vanderhoff
|
Ehrharta longiflora Longflowered veldtgrass
invasive non-native
Annual grass ![]() 2020 Angelique Herman
![]() 2020 Angelique Herman
![]() 2020 Angelique Herman
|
Euphorbia terracina Geraldton carnation weed
invasive non-native
Perennial herb ![]() 2021 Ron Vanderhoff
![]() 2021 Ron Vanderhoff
![]() 2017 Steve Matson
|
Galenia pubescens Coastal galenia
non-native
Perennial herb ![]() 2023 Ron Vanderhoff
![]() 2022 Ron Vanderhoff
![]() 2020 Joan Miller
|
Genista monspessulana French broom
invasive non-native
Shrub ![]() 2019 Ron Vanderhoff
![]() 2019 Ron Vanderhoff
![]() 2019 Ron Vanderhoff
|
Hypericum canariense Canary island st. johnswort
invasive non-native
Shrub ![]() 2019 Patrick Furtado
![]() 2019 Patrick Furtado
![]() 2015 Leah Bedoian
|
Melinis repens Natal grass
non-native
Annual grass ![]() 2016 Erik Larsen
![]() 2021 Ron Vanderhoff
![]() 2021 Ron Vanderhoff
|
Osteospermum calendulaceum Stinking roger
non-native
Perennial herb ![]() 2022 Ron Vanderhoff
![]() 2022 Ron Vanderhoff
![]() 2022 Ron Vanderhoff
|
Parthenium hysterophorus Santa maria feverfew
invasive non-native
Perennial herb ![]() 2019 Nathan Taxel
![]() 2019 Nathan Taxel
![]() 2018 Ron Vanderhoff
|
Rubus armeniacus Himalayan blackberry, black berry
invasive non-native
Shrub ![]() 2014 James Gonsman
![]() 2020 Julie A. Kierstead
![]() 2018 Richard Spjut
|
non-native
Perennial herb ![]() 2018 Ron Vanderhoff
![]() 2019 Ron Vanderhoff
![]() 2022 Ron Vanderhoff
|
Senecio linearifolius var. linearifolius Linear-leaved australian fireweed
non-native
Annual, Perennial herb ![]() 2019 Ron Vanderhoff
![]() 2018 Ron Vanderhoff
![]() 2021 Ron Vanderhoff
|
Volutaria tubuliflora Egyptian knapweed
invasive non-native
Annual herb ![]() 2017 Ron Vanderhoff
![]() 2020 Ron Vanderhoff
![]() 2020 Lynn Sweet
|