Riverbank Lupine, River-bank Lupine, Stream Lupine, Stream-bank Lupine
Lupinus rivularis
Synonyms: Lupinus amphibius, Lupinus lignipes
A close-up of the keel of riverbank lupine blooming on headlands above the Pacific Ocean along US Highway 101 to the south of Cannon Beach, OR...........May 22, 2009. Note the keel is ciliated (hairs lining the upper margin of the keel).
Close-up of the calyx of riverbank lupine as seen on headlands above the Pacific Ocean along US Highway 101 to the south of Cannon Beach, OR.......May 22, 2009. Note that the upper calyx lobe is about the same width (but slightly shorter than) as the lower calyx lobe.
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Riverbank lupine blooming on headlands above the Pacific Ocean along US Highway 101 to the south of Cannon Beach, OR.......May 22, 2009.
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Riverbank lupine blooming in meadows atop Mt. Hebo, Siuslaw National Forest......June 2, 2021.
Paul Slichter