| AST | common perennial of eastern North America having showy purplish flowers |
|---|---|
| AST | North American perennial herb having small autumn-blooming purple or pink or white flowers |
| AST | tufted rigid North American perennial with loose clusters of white flowers |
| AST | perennial of southeastern United States having usually blue flowers |
| AST | a common European salt-marsh aster |
| AST | violet-flowered perennial aster of central United States having solitary heads |
| AST | plants with heads composed of many florets: aster |
| AST | (of some crystals especially gemstones) exhibiting asterism |
| AST | family of more or less advanced dicotyledonous herbs and some trees and shrubs |
| AST | genus of more or less advanced dicotyledonous herbs and some trees and shrubs |
| AST | a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels |
| AST | the craniometric point at the junction of the lamboid suture and the occipitomastoid suture and the parietomastoid suture |