Introduced. Perennial. Propagates by seeds. Time of bloom: June to September. Seed-time: July to October. Range: Nova Scotia and New England, westward to Ontario and Ohio. Habitat: Roadsides, farmyards, waste places.
An escape from gardens; in some localities it is mistakenly called Lavender, but that is a very different plant. The fragrant leaves were formerly used for flavoring home-brewed ale or beer, but in these days they are occasionally eaten by milch cows and spoil the flavor of milk and butter.
Stems one to three feet tall, much branched, finely hairy. Leaves alternate, oblong, obtuse, scallop-toothed, one or two inches in length, many with a pair of small lateral lobes near the base but others without, those of the stem sessile except the lowermost. Heads numerous in open corymbose clusters, some with rays but oftener without; rays, when present, are white, short, and spreading; all the florets are fertile; bracts of the involucre narrow, obtuse, somewhat hairy. Achenes slightly angled with a short cup-like crown for pappus.
Means of control the same as for Tansy.