valley arrowhead
Sagittaria sanfordii Greene

Sagittaria sanfordii, known as valley arrowhead or Sanford's arrowhead, is a species of flowering plant in the family Alismataceae. It is endemic to California and was first described in 1890 by Greene.
Description
Sagittaria sanfordii is a member of the Alismataceae family and is native to California. It is known by the common names valley arrowhead and Sanford's arrowhead. This species is considered uncommon and is restricted to the Nearctic region, particularly within California. The plant was first published in 1890 by Greene.
Other common names
valley arrowhead
Distribution
Nearctic · California