Brook cinquefoil

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Brook cinquefoil

Brook cinquefoil

Brook cinquefoil leaf

Brook cinquefoil

Brook cinquefoil leaf

Brook cinquefoil habit

Brook cinquefoil

Brook cinquefoil

Brook cinquefoil leaves

Morphology

Stem

Decumbent to ascending or erect, branched from base, glabrate or soft-pubescent to villous.

Leaves

Alternate, cauline; stipules ovate to lanceolate, 1/4 to 1/2 inch; petiole 0 to 2.4 inches; blade pinnately or palmately compound; leaflets 3-5, obovate to oblanceolate or oblong, 2/5 to 2 inches long, 1/5 to 1 inch wide, margins crenate-serrate, tip blunt, lower surface pubescent to villous, upper surface glabrous.

Inflorescence

Mostly terminal, 15-30-flowered cymes

Flower

Pedicels 0 to 1 inch; bractlets immediately subtending the calyx 5, elliptic, 1/12 to 1/4 inch; sepals 5, ovate-triangular, 1/12 to 1/8 inch; petals 5, pale yellow, cuneate-obovate to oblanceolate, 1/20 to 1/8 inch; stamens (5)-10(-15).

Fruit

Achenes yellowish brown, ca. 1/32 inch, usually smooth, sometimes rugose, without corky appendage along inner margin.

Ecology

Habitat

Shores of ponds and lakes, river and stream banks, marshes, ditches, and swales

Distribution

Scattered throughout Kansas

Additional Notes