Avena orientalis: Hungarian oats. Description, other common names, range, habitat, uses, web and printed references.
Avena sativa: Image of Avena sativa from Flora von Deutschland.
Avena sativa: Description of the oat cereal, range and habitat, uses, web and printed references.
Avena Taxonomy: Lists the separate species of the genus, in their sections, and illustrated with photographs of the spikelets and florets.