Hieracium albiflorum (White Hawkweed) - photos and description

Hieracium albiflorum

Hieracium albiflorum

Hieracium albiflorum

Hieracium albiflorum

Hieracium albiflorum
Two rows of bracts

Hieracium albiflorum

Hieracium albiflorum
Basal leaf in above photo

Hieracium albiflorum
Stem leaf in above photo

General: Slender-stemmed plants with an erect growth habit, stems branching towards the top. Plants are rough hairy on lower stems, hairiness reduced upwards.

Flowers: Flowers numerous on long peduncles, are ligulate, creamy white in colour, we measured a flower at 12 mm diameter. Bracts in 2 rows of unequal length, blackish-green in colour.

Leaves: Basal leaves petiolate, elliptical to spatulate, basal leaf highlighted in photo above measured 13.5 cm long (including petiole) and 4 cm wide. Stem leaves alternate, reduced upwards, sessile, lanceolate; stem leaf highlighted above measured 6 cm long by 2 cm wide.

Height: Height listed in Budd's Flora to 60 cm. We measured plants to 70 cm tall.

Habitat: Open woods in the Cypress Hills.

Abundance: This plant is very rare provincially, ranked as an S1S2 by the Saskatchewan Conservation Data Centre. However, it's occasional in the centre block of the Cypress Hills.

Origin: Native.

When and where photographed: Photos taken July 24th, lodgepole pine forest, Cypress Hills, about 400 km southwest of our home in Regina, SK.