[Milk-vetches: The Genus Astragalus in the Columbia River Gorge of Oregon and Washington]

Tweedy's Milkvetch, Tweedy's Milk-vetch

Astragalus tweedyi

Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

Tweedy's milk-vetch as seen on grassy slopes along Rock Creek several miles north of Washington Highway 14 and the Columbia River.........May 30, 2008.

Range:

In the Columbia River Gorge, it may be found near the elevations of 200'-300' from the Goodnoe Hills east to Roosevelt, WA and from east of the Dalles, OR east to near Arlington, OR.


Flower of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

The photo above shows a close-up of the calyx tube and short calyx lobes of Tweedy's milk-vetch as seen on grassy slopes along Rock Creek several miles north of Washington Highway 14 and the Columbia River..........May 30, 2008.

Frontal view of the flower of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Pod of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

Additional close-up images of the front of the long, perpendicular banner and the distinctive fruit of Tweedy's milk-vetch as seen on grassy slopes along Rock Creek several miles north of Washington Highway 14 and the Columbia River...........May 30, 2008.

Pinnately compound leaf of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

The photo above shows a close-up of the pinnately-compound leaf of Tweedy's milk-vetch as seen on grassy slopes along Rock Creek several miles north of Washington Highway 14 and the Columbia River...........May 30, 2008.

Fruits of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Fruits of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Flowers of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Flowers of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

Flowers of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Fruits of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Flower of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Leaf of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

Tweedy's milk-vetch as seen near the junction of Washington Highway 14 and old Washington Highway 8 several miles west of Roosevelt, Washington........May 11, 2016.

Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

Tweedy's milk-vetch as seen on grassy slopes along Rock Creek several miles north of Washington Highway 14 and the Columbia River..........May 30, 2008.

Inflorescence of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi - Pinnately compound leaf of Tweedy's Milkvetch, Tweedy's Milk-vetch: Astragalus tweedyi

Tweedy's milkvetch as seen on sandy soils at milepost 115.5 along Washington Highway 14 in the Columbia River Gorge.........May 11, 2009.

Paul Slichter