[Lupines: The Genus Lupinus West of the Cascade Mountains of Oregon and Washington]

Stream Lupine, Riverbank Lupine, River-bank Lupine

Lupinus rivularis

Synonyms: Lupinus amphibius, Lupinus lignipes, Lupinus rivularis var. latifolius

Close-up of the keel of Stream Lupine, Riverbank Lupine, River-bank Lupine: Lupinus rivularis

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 flowers of Stream Lupine, Riverbank Lupine, River-bank Lupine: Lupinus rivularis (Synonyms: Lupinus amphibius, Lupinus lignipes, Lupinus rivularis var. latifolius) - Stream Lupine, Riverbank Lupine, River-bank Lupine: Lupinus rivularis (Synonyms: Lupinus amphibius, Lupinus lignipes, Lupinus rivularis var. latifolius) - Stream Lupine, Riverbank Lupine, River-bank Lupine: Lupinus rivularis (Synonyms: Lupinus amphibius, Lupinus lignipes, Lupinus rivularis var. latifolius)

What appears to be riverbank lupine blooming on a basalt outcrop between the two locks at Bonneville Dam, Columbia River Gorge.........May 14, 2013.

Calyx of Stream Lupine, Riverbank Lupine, River-bank Lupine: Lupinus rivularis

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.

Stream Lupine, Riverbank Lupine, River-bank Lupine: Lupinus rivularis -- Stream Lupine, Riverbank Lupine, River-bank Lupine: Lupinus rivularis

Riverbank lupine blooming on headlands above the Pacific Ocean along US Highway 101 to the south of Cannon Beach, OR.......May 22, 2009.

Paul Slichter