芹叶牻牛儿苗（芹叶牻牛儿苗为一年或二年生草本，植株高10-20厘米，叶片矩圆形或披针形，花瓣紫红色，蒴果，种子卵状矩圆形）
Erodium cicutarium, also known as Redstem filaree, Common Stork's-bill, Pinweed is an herbaceous annual, and in warm climates a biennial member of the Geranium Family of flowering plants. It is native to the Mediterranean Basin and was introduced to North America in the eighteenth century,
在美国加利佛尼亚北 部比较入侵种芹叶牻牛儿苗（Erodium cicutarium）在两种土壤中的幼苗建成发现，在蛇纹土壤中的幼苗比在非 蛇纹土壤中受到生物和非生物因子变化的影响更大。