Asclepias fascicularis

Narrow leaf milkweed

Growing 2 feet tall, half as wide with curious greenish white flowers tinged with purple followed by large seed heads. Native to dry valleys and foothills as well as salty coastal areas it likes sun and low water but can handle boggy clay soils in winter. Attracts butterflies and bumblebees - sap can be poisonous. Native to Marin and Sonoma County as well as much of the Western United States.