Calandrinia ciliata, Redmaids
Both the seeds and the glossy leaves are edible. Petals were used for rouge. It is widespread in California and was an important indigenous seed food for most of California's tribes. The seed, frequently found in archaeological sites, was also an important trade item.
The oily jet-black seeds can be toasted and then ground. The oil allows it to be formed into small balls. We sometimes add sugar and butter to these confections. The leaves have an arugula-like tang and can be eaten raw.