Sky lupines (Lupinus nanus) are a common spring resident of California annual grasslands. Lupines add nitrogen to the soil through their mutually beneficial symbiosis with root-nodulating rhizobium bacteria.
Lupinus Nanus
Sky lupines (Lupinus nanus) are a common spring resident of California annual grasslands. Lupines add nitrogen to the soil through their mutually beneficial symbiosis with root-nodulating rhizobium bacteria.