Perennials. Colony-forming from
short rhizomes or
stolons. Stems are usually densely
height is 2 to 3 feet. Foliage is faintly
compact, flat to slightly round-topped,
located at the tops of stems. Flower heads are borne on short
corymb-like arrangements at the tips of
Flower heads are radiate.
Ray floret corollas are typically
though rare forms with pink florets may be encountered. Disc
floret corollas are white to pale gray.
Basal leaves are often withered by
flowering. Stem leaves are numerous, alternate, somewhat crowded,
deeply lobed, and densely
Plants of fields, roadsides, open
disturbed areas. Flowers June to August. Not native.
Achillea millefolium is
a unique species in the central New York region. It somewhat resembles
Queen-Anne's lace (Daucus carota: Apiaceae).
below: Flower headss
left: leaf and stem detail.