Potentilla hippiana (Woolly Cinquefoil) - photos and description

Potentilla hippiana

Potentilla hippiana

Potentilla hippiana

Potentilla hippiana

Potentilla hippiana
Basal leaf in above photo

Potentilla hippiana
Stem leaf in above photo

Potentilla hippiana

Potentilla hippiana

General: Plants with woolly stems branching from crown, stems decumbent to erect.

The plant photographed above is P. hippiana var. argyrea (common name Silvery Cinquefoil) identified by both top and bottom of leaflets white woolly; it's listed as fairly common, we see this variety quite often in the Cypress Hills.

Flowers: Flowers yellow in terminal cymes; flower measured to 12 mm diameter. Petals measured to 5 mm. Sepals grey-woolly, deltoid, measured at 5 mm long by 3 mm wide. Outer bractlets green-grey, linear-lanceolate, measured at 4 mm long by 1 mm wide. The outer floral ring grows in a plane perpendicular to the stem.

Leaves: Basal leaves pinnate to 11 leaflets, leaflets dentate (and not deeply divided). The basal leaves on these plants were white-woolly on both sides. Stem leaves reduced in size upwards and have 5 or fewer leaflets.

Height: Height listed in Budd's Flora to 25 cm. We measured plants to 36 cm tall.

Habitat: Prairies and hills in southwest Saskatchewan.

Abundance: Common.

Origin: Native.

When and where photographed: The above photos were taken June 30th, prairie hillside, Cypress Hills about 400 km southwest of our home in Regina, SK.