Round-Leaved Sundew vs Knotted Rush - TreeTime.ca

Round-Leaved Sundew vs Knotted Rush

Drosera rotundifolia

Juncus nodosus

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Round-Leaved Sundew
Knotted Rush

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.

Knotted Rush is a native perennial wetland plant found growing in marshes, swamps, wet meadows, and along shorelines. It spreads by underground rhizomes to form colonies, which can also help stabilize soils and shorelines.

Its upright, slender stems and small clusters of greenish-brown seed heads add structure to wetland plant communities. Knotted Rush is well-suited to wetland conservation, rain gardens, naturalization, and restoration projects. As a cool-season grower, it grows actively during spring and fall, when temperatures are cooler.

Round-Leaved Sundew Quick Facts

Knotted Rush Quick Facts

Zone: 3a
Zone: 1b
Height: 0.1 m (0.2 ft)
Height: 0.5 m (1.5 ft)
Spread: 0.1 m (0.4 ft)
Spread: 0.2 m (0.5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: wet
Moisture: wet
Growth rate: slow
Growth rate: fast
Life span: short
Life span: short
Growth form: rosette-forming
Growth form: upright, colony forming
Spreading: axillary bud plantlets - medium, seeds - low
Spreading: rhizomes - medium


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: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, PE
Other Names: roundleaf sundew