Thermopsis rhombifolia (Golden Bean) - photos and description

Thermopsis rhombifolia

Thermopsis rhombifolia

Thermopsis rhombifolia

Thermopsis rhombifolia
15 cm ruler for scale

Thermopsis rhombifolia

Thermopsis rhombifolia

General: Plants strongly rhizomatous, stems ascending to erect. Stems, leaf undersides, and calyx all pubescent. Often found in large colonies, when in bloom they can create a blaze of yellow on the prairie.

Flowers: Bright yellow flowers in a dense raceme, flowers measured at 1.5 cm diameter and 2 cm long. Flowers have a light scent.

Leaves: Alternate, trifoliate, the leaflets oblanceolate to obovate, we measured a leaflet at 4 cm long and 3.5 cm wide. Leaves with a pair of ovate stipules. Leaves ciliate, leaf undersides pubescent, leaf tops glabrous.

Height: Height listed in Budd's Flora to 50 cm, we measured plants to 21 cm tall.

Habitat: Grassland, hillsides and patchy woodland.

Abundance: Common.

Origin: Native.

When and where photographed: Took the above photos May 5th and May 13th in the Qu'Appelle valley about 30 km north of Regina, SK.