Anemone oregana A.Gray

Taxonomic Identity and Growth Form

Anemone oregana A.Gray is a perennial herb that grows from a thick rhizome.

Plant Height

It typically reaches 50–300 mm (2–12 inches) in height, and may exceptionally grow to 350 mm (14 inches) tall.

Basal Leaf Structure

One single basal leaf, made up of three large leaflets attached to a 40–200 mm (2–8 inch) petiole, may be present on the plant.

Inflorescence Composition

Its inflorescence is made up of one tier of three leaflike bracts and a single flower.

Bract Morphology

When a basal leaf is present, the bracts closely resemble this basal leaf.

Terminal Leaflet Attachment

The terminal leaflet may grow on its own petiole or attach directly to the plant without a petiole (sessile).

Terminal Leaflet Margin and Tip

The margin of the terminal leaflet has sharp teeth along its distal half or third, and has a pointed tip.

Lateral Leaflet Structure

Lateral leaflets may each grow a single lobe.

Flower Perianth Structure

The flower has no true petals; instead, it has 5 to 7 petal-like sepals that can come in several colors.

Sepal Coloration

Sepals are most commonly blue or purple, but may also be reddish, pink, white, or bicolored.

Flower Stamen Count

Up to 75 thin stamens are located in the center of the flower.

Fruit Type

The fruit produced is a cluster of achenes.