ageratum
plant
any of about 45 species of annual herbs making up the genus Ageratum (family Asteraceae), and native to tropical South America. They have toothed, oval leaves that are opposite each other on the stem; compact clusters of blue, pink, lilac, or white flowers; and small, dry fruits.Dwarf varieties of the common garden ageratum (A. houstonianum) are used as edging plants. Some ageratums are variously known as flossflower and pussy-foot.
- Archibald Acheson, 2nd earl of Gosford
- Archibald Acheson Gosford, 2nd earl of
- Archibald Campbell, 3rd Duke of Argyll
- Archibald Campbell Argyll, 3rd Duke of
- Archibald Campbell Tait
- Archibald Constable
- Archibald Douglas, 6th Earl of Angus
- Archibald Douglas Angus, 6th Earl of
- Archibald H Sayce
- Archibald Johnston, Lord Warriston
- Archibald Johnston Warriston, Lord
- Archibald Lampman
- Archibald MacLeish
- Archibald Philip Primrose, 5th earl of Rosebery
- Archibald Philip Primrose Rosebery, 5th earl of
- Archibald Scott Couper
- Archidamus I
- Archidamus II
- Archidamus III
- Archidamus IV
- Archidamus V
- Archie Hahn
- Archie Moore
- Archie Shepp
- Archilochus