Erodium cicutarium (redstem filaree) is an aggressive annual/biannual (family Geraniaceae) that is very widespread throughout California and is commonly found along roadsides, grasslands, fields, and semi-desert areas. It often carpets large areas, out-competing native grasses and forbs.
Over the past 200 years, California grasslands have become increasingly invaded by a suite of Mediterranean annual grasses and forbs. The invasion has reduced the richness of the native annual plant community and converted a perennial bunchgrass community into a non-native annual grassland. Prescribed fires are used by land managers on these converted landscapes as […]
Brassica tournefortii, or Sahara mustard, is an exotic invasive mustard increasing in dominance throughout the southwestern deserts. It is rapidly invading the Mojave desert where only Schismus spp. and Erodium cicutarium were previously known to invade. Although it has been assumed that B. tournefortii is able to invade the Mojave because of its early germination […]
Vast fields of native annual wildflowers dominating the plains and valleys of historic California have been insidiously displaced by European invaders over the past two centuries. California wildflowers flush in spring and set seed that may store in seed banks but commonly germinate with the first winter rains. Most wildflowers disarticulate and leave little fuel […]
Invasive plant species and anthropogenic nitrogen deposition are altering southern California landscapes. One particularly susceptible ecosystem is the desert, where resources are naturally low and native plants are adapted to a stochastic environment. As urbanization expands into the desert, nitrogen deposition is creating a nutrient pulse that may provide an advantage to invasive species. These […]
References Click on the first letter of the last name:A | B | C | D | E | F | G | H | I-J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z Aberle, […]
California Wildland Invasive Plants John M. Randall and Marc C. Hoshovsky The focus of this book is non-native plants that invade parks, preserves, and other wildlands in California, but our real concern is the survival and growth of the native plants and animals these invaders threaten. Unfortunately, some non-native invasive plant species inflict so much […]
Index of articles in CalEPPC and Cal-IPC News, Vols. 1-14 (1993-2007) Sorted by species name (includes spelling variations) Acacia baileyana (1) (1993). California Exotic Pest Plant Council draft list exotic plants of greatest concern October 1993. CalEPPC News. 1: 6. Acacia decurrens (1) (1993). California Exotic Pest Plant Council draft list exotic plants of greatest […]