HABITAT: Seaside arrowgrass can be found in the low zone of the marsh. At high tides it can be submerged underwater for several hours.
FOOD AND HABITAT PROVIDED: Seaside arrowgrass typically has seed stalks from summer to fall. The seeds of this plant are a valuable food source for many birds. The floating nest of the California clapper rail has been observed suspended between the leaves.
FUN FACT: The green parts of the leaves are toxic — they have compounds in them that are capable of producing cyanide. The seeds can be eaten if lightly roasted and ground into a powder. The roasted seed is also used as a coffee substitute.