Thalictrum venulosum (Veiny Meadow Rue) - photos and description
Male flowers in above photo.
Male flowers in above photo.
Female flowers in above photo.
Female flowers in above photo.
Leaflets mostly wider than long.
General: Upright perennials, little branched, rhizomatous. Plants nearly glabrous. Stems hollow.
Flowers: Plants unisexual, with flowers of different sexes on different plants. Flowers grow in panicles, the male flowers pendant. The male and female flowers vary in colour from white to reddish-purple.
Leaves: Leaves alternate, twice-divided giving three sets of three leaflets per leaf. Leaflets three-lobed and round toothed. Leaflets glabrous to thinly hairy below. Leaflets often bluish-green in colour. End leaflet measured at 2 cm long by 2.5 cm wide.
Height: Height listed in Budd's Flora to 200 cm, we measured plants to 104 cm tall.
Habitat: Woodlands across the province.
Abundance: Common.
Origin: Native.
Similar species: This plant might be confused with
Thalictrum dasycarpum. To
distinguish between the two:
- Length to width ratio of leaflets. The leaflets of T. dasycarpum
are longer than wide, leaflets of T. venulosum are wider than long.
- Hairiness of bottom of leaflets. The leaflets of T. dasycarpum
are puberulent, leaflets of T. venulosum are almost glabrous.
When and where photographed: Photo taken June 4th and 5th, aspen woods, Qu'Appelle Valley, 30 km north of Regina, SK, and, June 19th, Cypress Hills, 425 km southwest of our home in Regina, SK.