Lomatogonium rotatum (Marsh Felwort) - photos and description

 

 

 

 

 

General: Slender annual, unbranched or branching above with the branches ascending. Stems glabrous.

Flowers: The flowers are bluish-white growing on pedicels from the upper leaf axils. The flowers usually with 5 petals, the petals having greyish-blue stripes. We measured flowers to 15 mm in diameter. There are 5 linear sepals longer than the petals.

Leaves: Leaves are opposite, linear lanceolate, glabrous, the longest leaf we measured was 40 mm long and 5 mm wide.

Height: Height listed in Budd's Flora to 45 cm, we measured plants to 41 cm tall.

Habitat: Marshes and saline flats.

Abundance: Rare, ranked as an S3 (as of 2019) by the Saskatchewan Conservation Data Centre.

Origin: Native.

When and where photographed: We took the above photos September 4th and September 5th, in a grassy riparian area 40 metres north of a wetland at the Last Mountain Lake National Wildlife Area, about 150 km north of our home in Regina, SK.