[Milkvetches: The Genus Astragalus in the Columbia River Gorge of Oregon and Washington]

Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch

Astragalus conjunctus var. rickardii

Synonym: Astragalus reventus var. conjunctus

Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus)

Idaho milkvetch (var. rickardii) as seen on calliche soils near Arlington, Oregon.........May 12, 2012.

Close-up of the fruits of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus) - Close-up sideview of a fruit of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus) - Inflorescence of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus)

Close-up sideview of the calyx and corolla of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus) - Close-up sideview of the calyx and corolla of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus)

Close-up images of the flowers and fruits of Idaho milkvetch (var. rickardii) as seen on calliche soils near Arlington, Oregon...........May 12, 2012.

Close-up sideview of the calyx and corolla of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus) - Close-up sideview of calyx and corolla of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus)

Close-up of the fruits of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus) - Close-up of a fruit of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus) - Close-up of the sideview of a fruit of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus)

Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus) - Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus)

Habitat of Idaho Milkvetch, Idaho Milk-vetch, Stiff Milkvetch, Stiff Milk-vetch: Astragalus conjunctus var. rickardii (Synonym: Astragalus reventus var. conjunctus)

Close-up images of the flowers and fruits of Idaho milkvetch (var. rickardii) as seen in the Columbia River Gorge in Sherman County, Oregon...........May 12, 2012.

Close-up sideview of the pod of Idaho Milkvetch, Idaho Milk-vetch: Astragalus conjunctus var. conjunctus (Synonyms: Astragalus diversifolius var. campestris, Astragalus reventus var. conjunctus, Homalobus campestris) - Ventral view of the broad pod of Idaho Milkvetch, Idaho Milk-vetch: Astragalus conjunctus var. conjunctus (Synonyms: Astragalus diversifolius var. campestris, Astragalus reventus var. conjunctus, Homalobus campestris)

The photo above shows two views of the pod of Idaho milk-vetch. Photographed from slopes along OR Highway 219 east of the Deschutes River in north-central Oregon...........April 19, 2007. Note the minute hairs on the surface of the pod. The pods of variety conjunctus should be glabrous, so the plants at this site are most likely those of Astragalus conjunctus var. rickardii).
Paul Slichter