Polygonaceae: Knotweed Family — Eriogonum (Buckwheat)
Flowers in this family do not have separate petals and sepals. Where this is the case, the term “perianth” is used to describe the flower (i.e. the calyx and the corolla together) and “perianth parts” to describe the individual elements, whether or not they are distinguishable. Buckwheats are a very large and diverse group of plants, almost 40 different species found in Monterey and almost 120 species (not counting subspecies and varieties) in California as a whole. Not surprisingly, identification can prove challenging and the widely varying leaves and growth habits can prove more helpful in the identification process than the often similar flowers. Beyond a certain point, a good botanical key is indispensable.