Plants in Yaquina Estuary

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Arrowgrass. Long stalks with tiny clusters of white flowers rise from clumps of narrow thin leaf blades.

Arrowgrass

Triglochin maritimum

Salt marshes are created by the first plants that establish themselves on high points on the tideflat. One of first to take hold is arrowgrass. As these colonizers begin to grow, they slow down currents and trap sediment, building the marsh up and out toward the bay.

Habitat: Salt marsh

 

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The flower stalk of a yellow bush lupine. The long green stalk has clusters of opposite yellow flowers.

Bush Lupine

Lupinus arboreus

Bush lupine, introduced from northern California, has bacteria in its roots that convert nitrogen from the atmosphere to a form the plant can use. A member of the pea family, lupine does well in the low-nitrogen soils of the Pacific Northwest.

Habitat: Upland

 

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Close up of foxglove flowers. The purple flowers have a tube shape that flars at the opening. Inside the flowers are dark purple spots.

Foxglove

Digitalis purpurea

While spring and summer are the best times to see flowers along the estuary, many of the perennial plants are easily identified throughout the year.

Habitat: Upland

 

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A clump of picklewood grows close to the soil. It is a light green, leafless, slim stemmed succulent.

Picklewood

Salicornia virginica

Salt marshes are created by the first plants that establish themselves on high points on the tideflat. Among the first to take hold are pickleweed. As these colonizers begin to grow, they slow down currents and trap sediment, building the marsh up and out toward the bay.

Habitat: Salt marsh

 

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A scrub of scotch broom in bloom. The dense bush has yellow flowers at the tops of spiny, leafless branches.

Scotch Broom

Cytisus scoparius

Introductions such as European beach grass were planted to stabilize dunes or shifting sand. Others, like Scotch broom, were planted as ornamentals. Nonnative plants often out-compete and displace the native ones in an area, a process that can eventually lead to a local decrease in species diversity.

Habitat: Upland

 

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Botanical sample of a coastal willow. On the left is a branch with willow buds and flowers. The one on the right shows glossy round lobed leaves on a branch.

Willow

Salix hookeriana

Like most upland plants, willow cannot tolerate soil that is high in salt. The bark of this tree was chewed by Native Americans to relieve headaches. Salicylic acid, a forerunner of aspirin, is found in willow leaves and bark.

Habitat: Upland

 

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Close up image of yarrow in flower. A cluster of white flowers with yellow centers tops a long stem with narrow fuzzy leaves.

Yarrow

Achillea millefolium

Yarrow can be seen blooming from June through September. Native Americans used this aromatic plant as tea and used strong solutions of yarrow medicinally.

Habitat: Upland