[Lupines East of the Cascade Mts. of Oregon and Washington]

Meadow Lupine, Rock Lupine, Stony-ground Lupine

Lupinus polyphyllus var. saxosus

Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

The photograph above shows stony-ground lupine as seen along Cowiche Mill Road, several miles west of Yakima, WA................March 28, 2007.

Close-up sideview of a flower of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) The photo at right shows a close-up sideview of the calyx and corolla of stony-ground lupine as photographed along Cowiche Canyon Road to the west of Yakima, WA............March 28, 2007.
Characteristics:

Also known as meadow or rock lupine, stony-ground lupine is an attractive perennial wildflower of shorter stature than many perennial lupines. It consists of several to many spreading to erect stems that are generally unbranched and measure from 15-40 cm long. Plants often appear wider than tall. The herbage of the stems consists of long spreading hairs. The stems especially may appear brownish in color (See photo above.) The basal leaves have long petioles measuring up to 14 cm long and which are covered with long-villous hairs. The 8-12 leaflets are oblanceolate in outline with acute to rounded tips, and they measure from 2-4 cm long and 6-10 mm wide. The upper surface of the leaflets is green and ranges from glabrous to sparsely hairy while the ventral surface of the leaflets consists of long, somewhat appressed hairs.

The close-flowered racemes generally measure from 5-10 cm long in flower, 3.5-4.5 cm wide, and up to 15 cm long in fruit. The stout pedicels measure from 5-8 mm long while the calyx is hairy (See photos.) with the upper lip cleft at least one-third of its length (often more than one-half its length (See photo below.). The petals are 14-18 mm long with the broad wings longer than the keel. The standard or banner is well reflexed back from the wings and keel, with a banner index of from at least 10-15. Flowers are bright blue with some purple highlights while the front of the banner is whitish or yellowish, sometimes marked with purple. The keel is ciliate-margined.

The banner index is obtained by measuring the distance of the wings (from their distal tip to the point of intersection with the banner) and multiplying that by the measurement of the front of the banner (from its distal dip to its intersection of the wings).


Habitat:

Stony-ground lupine may be found on shallow, rocky soils on open scablands or grasslands or amongst sagebrush or juniper. It is also found on basalt rimrock or in open ponderosa pine woods. It is most often found below elevations of 1800 meters.


Range:

A widespread species in western North America, stony-ground lupine may be found east of the Cascade Mts. from north-central Washington south through central and eastern Oregon to northern California and east to Nevada and south to the northern Great Basin.


Flower of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Flower of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Close-up of a flower of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Deeply parted upper calyx lobe of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Dorsal surface of a leaflet of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Dorsal view of the deeply cleft upper calyx lobe of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Ventral surface of a leaflet of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Additional close-up photos of stony ground lupine as seen along Mabton Road at the high point east of Bickleton, WA, where the road begins to descend towards Mabton, WA..........April 18, 2010.

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

The photograph above shows stony-ground lupine as seen along Cowiche Mill Road, several miles west of Yakima, WA............March 28, 2007.

Close-up view of the keel of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Dorsal view of the upper calyx of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Ventral surface of the leaflets of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)
The photo at left shows a close-up of the keel of stony-ground lupine. Note the minute hairs lining the upper edge of the keel. In the close-up of the back of the banner note the upper calyx lobes which are split about one-third the length of the calyx in this case. All photos are from along Cowiche Mill Road west of Yakima, WA..........March 28, 2007.

Close-up sideview of a flower of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Close-up of the stem hairs of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Ventral surface of leaflets of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Dorsal surface of leaflets of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Ventral surface of the palmately compound leaf of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Fruits of Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Additional close-up photos of stony-ground lupine as seen along US Highway 97 at a pass about a dozen miles northwest of Ellensburg, Washington..........June 9, 2011. Note the oblanceolate shape of the leaflets (broadly acute tips) with spreading hairs on both surfaces and the reddish stems with spreading hairs.

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Stony-ground lupine beginning to bloom along FS Road 16 near Big Creek Campground in Logan Valley, Malheur National Forest...........June 5, 2011.

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus) - Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

Stony-ground lupine blooming along the Gray Butte Trail #852 on the west side of Gray Butte, Crooked River Grasslands..........May 20, 2017.

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

The photograph above shows stony-ground lupine as seen at the high point along Lonerock Road between Condon, OR and Lonerock, OR............May 1, 2004. Note that this lupine often appears wider than tall.

Meadow Lupine, Rock Lupine, Stony-ground Lupine: Lupinus polyphyllus var. saxosus (Synonyms: Lupinus saxosus, Lupinus saxosus var. saxosus, Lupins saxosus var. subsericeus, Lupinus subsericeus)

The photo above shows a typical view of stony-ground lupine as seen along US Highway 97 about 1 mile north of Shaniko, OR............April 18, 2004.

Paul Slichter