Carrichtera annua
(L.) DC.
Wards weed
Carrichtera annua is an annual herb that is not native to California.
Cal-IPC rating: moderate
Bloom Period
one or more occurrenceswithin a 7.5-minute quadrangle
The blue points on the map indicate observations in Calflora.
Click on the map to view observations within a specific county.
Click on the map to view observations within a specific county.
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot
Ward's weed threatens to spread across Southwest: The invader was first found in Carlsbad, near San Diego, about 2008 by a botanist working in a habitat preserve along Alicante Road in the La Costa area.
[Wikipedia] Macaronesia, North Africa, Western Asia to Iran & Saudi Arabia,: Carrichtera is a genus of flowering plants belonging to the family Brassicaceae. It has a single species, Carrichtera annua, commonly known as Ward's weed. Its native range is from Macaronesia across North Africa and Western Asia to Iran and Saudi Arabia, and in Portugal and Greece in southern Europe.[1] It has been introduced to Italy, Japan, Australia, New Zealand, and California,[1] where it is considered invasive.[2] (link added by Mary Ann Machi)
