Most Astragali in the western United States are annual or perennial herbs and are noted as &quot;pioneer&quot; species that grow in xeric habitats left vacant after the retreat of the last Ice Age.
(Most Astragali in the western United States; are; annual or perennial herbs) (Most Astragali in the western United States; are noted; as &quot) (species; grow; L:in xeric habitats) (xeric habitats; left; vacant; T:after the retreat of the last Ice Age)
Most Astragali in the western United States Most Astragali in the western United States species xeric habitats
are are noted grow left
annual or perennial herbs
as &quot
L:in xeric habitats
vacant T:after the retreat of the last Ice Age