Woolgrass vs Round-Leaved Sundew - TreeTime.ca

Woolgrass vs Round-Leaved Sundew

Scirpus cyperinus

Drosera rotundifolia

CUSTOM GROW

CUSTOM GROW

Woolgrass
Round-Leaved Sundew

Woolgrass is a native perennial sedge that forms dense clumps in wetlands, ditches, and along shorelines. Its ability to thrive in saturated soils and shallow water, combined with its spreading growth habit, makes it especially valuable for waterside & riparian plantings, erosion control, ecological restoration, and naturalization projects.
The distinctive spikelets are covered in brown woolly bristles, which is where it gets the name Woolgrass. It produces seeds that are eaten by waterfowl and small mammals, while its dense stems offer cover and nesting habitat. It grows most actively in spring and fall, slowing or going dormant in the summer heat.

Round-Leaved Sundew is a native carnivorous plant, easily recognized by its bright green leaves covered in distinctive red, glandular hairs. These hairs secrete a sticky substance that is used to attract, trap, and digest insects. Their carnivorous nature allows them to survive in nutrient-poor, acidic soils where many other plants may struggle to grow.
They produce small white flowers that grow along the top of a slender, leafless stem. They can be found growing in wetlands, most often among sphagnum moss, in consistently moist, acidic soils. It does best in cooler summer climates and is intolerant of shade. Due to its small size, the plant can be difficult to spot in its natural habitat. Round-Leaved Sundew is an indicator of healthy wetland systems and is valued in ecological restoration and conservation projects.

Woolgrass Quick Facts

Round-Leaved Sundew Quick Facts

Zone: 3a
Zone: 3a
Height: 1.5 m (5 ft)
Height: 0.1 m (0.2 ft)
Spread: 0.9 m (3 ft)
Spread: 0.1 m (0.4 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: wet
Moisture: wet
Growth rate: fast
Growth rate: slow
Life span: short
Life span: short
Growth form: upright, colony-forming
Growth form: rosette-forming
Spreading: rhizomes - medium
Spreading: axillary bud plantlets - medium, seeds - low


Foliage: round, green with sticky red tentacles
Fall colour: red to marooon
Flowers: tiny white flowers on long leafless stem
Bloom time: summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: MB, ON, QC, NS, NB, NL, PE
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: brown woolly sedge, common woolgrass, common woolly bulrush, cottongrass bulrush, marsh bulrush, wool grass
Other Names: roundleaf sundew