A deciduous perennial that grows to 6\' tall with pea shaped purple flowers. The Indians used the roots as rope fiber. It is a stream side or seasonal creek plant. Normal companion plant are Salix, Sambucus, Rosa and Symphoricarpos.
Psoralea macrostachys Butterfly Alfalfa tolerates clay, serpentine and seasonal flooding.
Psoralea macrostachys Butterfly Alfalfa's foliage type is deciduous.
Psoralea macrostachys Butterfly Alfalfa's flower color is violet.
Communities for Psoralea macrostachys Butterfly Alfalfa:Chaparral, Coastal Sage Scrub, Mixed-evergreen Forest and Riparian (rivers & creeks).
| ph: | 6.00 to 7.00 |
|---|---|
| usda: | 7 to 10 |
| height[m]: | 1.00 to 3.00 |
| width[m]: | 1.00 to 2.00 |
| rainfall[cm]: | 77.00 to 1550.00 |