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Western Wetland Flora

Field Office Guide to Plant Species

Flat-top Pussy-toes
Antennaria corymbosa E. Nels.

JPG -- Species Photo JPG -- Distribution Map

Family: Composite (Compositae)
Flowering: June-August
Field Marks: This species differs from all other pussy-toes by the conspicuous black spot near the middle of each bract in the flower head.
Habitat: Wet meadows in the mountains.
Habit: Perennial, mat-forming herb from a slender rootstock.
Stems: Both spreading stolons and upright stems present, up to 10 inches long, hairy.
Leaves: Basal and alternate on the stem, simple, oblanceolate to spatulate, up to 2 inches long, up to 1/4 inch wide, pointed at the tip, tapering to the base, hairy but greenish.
Flowers: Several crowded together into heads, the male and female flowers borne on separate plants; heads several in a terminal cluster, subtended by bracts; bracts woolly, with a conspicuous black spot near the middle.
Sepals: 0.
Petals: White, those of the male flowers united into thread-like rays, those of the female flowers united into a tube with 5 teeth.
Stamens: 5.
Pistils: Ovary inferior; styles in the female flowers deeply 2-cleft.
Fruits: Achenes minutely hairy, topped by slender bristles.

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Page Last Modified: Thursday, 03-Aug-2006 11:39:25 EDT
Menlo Park, CA [caww54]