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

Burke's Lupine, Large-leaved Lupine, Many-leaved Lupine

Lupinus polyphyllus var. burkei

Synonyms: Lupinus burkei, Lupinus burkei ssp. burkei

Burke's Lupine, Large-leaved lupine, Many-leaved Lupine: Lupinus polyphyllus var. burkei (Synonyms: Lupinus burkei, Lupinus burkei ssp. burkei) - Burke's Lupine, Large-leaved lupine, Many-leaved Lupine: Lupinus polyphyllus var. burkei (Synonyms: Lupinus burkei, Lupinus burkei ssp. burkei) - Inflorescence of Burke's Lupine, Large-leaved lupine, Many-leaved Lupine: Lupinus polyphyllus var. burkei (Synonyms: Lupinus burkei, Lupinus burkei ssp. burkei)

The photo at left shows large-leaved lupine as seen in moister soils on the north side of the DNR rock quarry at about 4100' abreast a ridge dividing the Dairy Creek and Cougar Creek drainages at the southeastern corner of Mt. Adams........June 11, 2005. The stems occasionally will have side branches that end in racemes. The image at center shows Burke's lupine in bloom along the Cedar Creek Trail #457, Mount Hood National Forest......July 5, 2025. The photo at right shows the inflorescence of large-leaved lupine at the DNR rock quarry at about 4100' abreast a ridge dividing the Dairy Creek and Cougar Creek drainages at the southeastern corner of Mt. Adams.........June 11, 2005.

Flower of Burke's Lupine, Large-leaved lupine, Many-leaved Lupine: Lupinus polyphyllus var. burkei (Synonyms: Lupinus burkei, Lupinus burkei ssp. burkei) - Flower of Burke's Lupine, Large-leaved lupine, Many-leaved Lupine: Lupinus polyphyllus var. burkei (Synonyms: Lupinus burkei, Lupinus burkei ssp. burkei)

The photo at left affords a view of the keel of large-leaved lupine. Note the broad lateral surface of the keel and the hairs along its upper margin, as well as the keel tip which abruptly curves upwards and narrows rapdily to a point. The keel has accidently been ripped in the process of exposing it. Photographed at 4050' atop the ridge dividing the Dairy and Cougar Creek drainages on the eastern slopes of Mt. Adams.........June 17, 2006. The photo at right shows the flower of large-leaved lupine as seen in moister soils surrounding the DNR rock quarry at about 4100' abreast a ridge dividing the Dairy Creek and Cougar Creek drainages at the southeastern corner of Mt. Adams.........June 11, 2005. Note the wide banner index (the banner is reflexed sharply upwards at a point about halfway along length of the wings).

Back of the banner of Burke's Lupine, Large-leaved lupine, Many-leaved Lupine: Lupinus polyphyllus var. burkei (Synonyms: Lupinus burkei, Lupinus burkei ssp. burkei)

The photo above shows an unopened flower of large-leaved lupine as seen in moister soils on the north side of the DNR rock quarry at about 4100' abreast a ridge dividing the Dairy Creek and Cougar Creek drainages at the southeastern corner of Mt. Adams..........June 11, 2005. Note that the dorsal surface of the banner is largely glabrous, or free of any hairs.

Leaf of Burke's Lupine, Large-leaved lupine, Many-leaved Lupine: Lupinus polyphyllus var. burkei (Synonyms: Lupinus burkei, Lupinus burkei ssp. burkei)

The photo above shows the large leaves of large-leaved lupine. The leaves of broadleaf lupine may appear at first to be very similar, but this species has leaflets that are generally less than 8 cm long while those of large-leaved lupine are typically much longer.
Paul Slichter