Sorry. Not a pic that shows off the whole plant. It is the wavy, strap like leaves. NOT the flowering Leptosiphon..
Tall, slender plant that stands about 5' tall. Flowers are located along the stock and are white in color. Only bloom in late afternoon and evening.
Possible herbarium specimen
Chlorogalum pomeridianum, the wavy-leafed soap plant, California soaproot, or Amole, is the most common and most widely distributed of the soap plants, soaproots or amoles, which make up the genus Chlorogalum of flowering plants. It is occasionally known as the "wild potato", but given the plant's lack of either resemblance or relationship to the potato, this name is not recommended.