For Further Research You may research other species listed by selecting the italicized links. You can press each picture to see where it is credited to and, in many cases, to see other pictures of the species. You can also check out other information that I have included under each picture. Stems are edible before flowering.
Seeds are edible when ground and used as flour.
CalFlora Record Mountain Sorrel Oxyria digyna The leaves and stems are high in vitamin C and can be eaten raw or cooked or stored for future use. CalFlora Record Knotweed - Smartweed Polygonum amphibium var. CalFlora Record Dock Sorrel Rumex angiocarpus, R. californicus, R. paucifolius , R. paucifolius ssp gracilescens, R. salicifolius , R. triangulivalvis The leaves and stems of all species are edible after the bitter taste is removed by boiling many times.