Drymocallis arguta (White Cinquefoil) - photos and description





15 cm ruler for scale


General: Stout-stemmed plants with an erect growth habit. Lower stem is red in colour. Stem pubescent.

Flowers:  Flowers in dense cymes, are white, we measured a flower at 15 mm diameter. The calyx has glandular hairs making it sticky when touched.

Leaves: Leaves pinnate with up to 9 leaflets. The basal leaves long-stalked, the leaf highlighted in the above photo was 22 cm long (including petiole), and its terminal leaflet measured 6 cm long by 3 cm wide. Stem leaves alternate, reduced in size upwards, the leaflets serrate. Tops and bottoms of leaves are pubescent.

Height: Height listed in Budd's Flora to 90 cm. We measured plants to 73 cm tall.

Habitat: Moist grasslands.

Abundance: Listed as common in Checklist of the Vascular Plants of Saskatchewan.

Origin: Native.

Synonym: Listed in some of the field guides we use as Potentilla arguta.

When and where photographed: Took the above photos on July 1st in a forest meadow, Nisbet provincial forest about 375 km north of Regina, SK, and July 10th meadow, Duck Mountain Provincial Park, 300 km northeast of our home in Regina, SK.