Lithophragma glabrum (Rockstar) - photos and description

Lithophragma glabrum

Lithophragma glabrum

Lithophragma glabrum

Lithophragma glabrum

Lithophragma glabrum
Bulblets along upper stem

Lithophragma glabrum

Lithophragma glabrum

Lithophragma glabrum

Lithophragma glabrum
Basal leaf in above photo

Lithophragma glabrum
Stem leaf in above photo

Lithophragma glabrum
Bulblet in leaf axil

Lithophragma glabrum

General: Slender plant with small reddish-purple bulblets in leaf axils and along upper stem. Stems red-coloured, pubescent.

Flowers: Flowers 1 to 3 flowers at stem tips, white, each flower with 4 or 5 petals, each petal with 3 lobes. We measured a flower to 13 mm wide.

Leaves: Basal leaves stalked, palmately divided into 5 segments. We measured a basal leaf at 25 mm diameter. Stem leaves 1 to 3 per stem, have short stalks, alternate, divided into 3 segments. Bottom and margins of leaves pubescent.

Height: Budd's Flora lists the height to 20 cm, we measured plants to 22 cm tall.

Habitat: Slopes, edges of streams in the Cypress Hills.

Abundance: Very rare, this plant is ranked as an S2 (as of 2019) by the Saskatchewan Conservation Data Centre.

Origin: Native.

Synonym: Listed in some of the guides we use as Lithophragma bulbifera.

When and where photographed: Photos taken May 23rd, 24th and May 31st, ravine bottom on edge of brook in grassland, Cypress Hills, about 450 km southwest of our home in Regina, SK.