Heracleum sphondylium ssp. montanum (Cow Parsnip) - photos and description

 

 

 

 


Entire inflorescence subtended by bracts.


Each umbel subtended by bracts.

 

General: Coarse plant with huge leaves. Stems are pubescent at top and glabrous at bottom.

Flowers: Flowers are white in compound umbels; we measured a compound umbel at 22 cm wide, an umbel at 5 cm wide, and 1 flower at 14 mm wide. The entire compound umbel usually subtended by linear bracts, each umbel subtended by linear bracts. A bract was measured at 15 mm long by 1 mm wide. Flowers have an unpleasant aroma.

Leaves: Leaves trifoliate, leaflets are huge, deeply cleft and serrate. We measured a leaflet at 32 cm wide and 27 cm long. Leaves tomentose below are sparsely hairy above.

Height: Height listed in Budd's Flora to 250 cm, we measured plants to 163 cm tall.

Habitat: Shady, moist woodlands.

Abundance: Common.

Origin: Native.

Synonym: Listed in some of the field guides we use as Heracleum lanatum.

When and where photographed: These photos were taken August 2nd, swampy woods, boreal forest, about 300 km northeast of our home in Regina, SK.