Common Cattail vs Mountain Alder - TreeTime.ca

Common Cattail vs Mountain Alder

Alnus incana subsp. tenuifolia

Typha latifolia

CUSTOM GROW

CUSTOM GROW

Mountain Alder
Common Cattail

Mountain Alder is a native cold-hardy shrub or small tree often found along streams and in moist forested habitats. Its nitrogen-fixing ability enriches soils and supports surrounding vegetation, while its extensive root system helps stabilize streambanks and slopes. The fast growth rate allows it to establish quickly on disturbed sites, making it especially valuable in reclamation, restoration, and erosion control projects.

Often forming dense thickets, Mountain Alder enhances habitat quality in riparian and upland areas. It provides food and cover for various wildlife, including birds and small mammals. Recognized as an important species for soil and water conservation, it is well suited for riparian planting, naturalization, and ecological restoration.

Note: We use Sitka Alder for Alnus incana subsp. tenuifolia. This species is also known by many other common names, including Grey Alder, River Alder, and others. Please confirm the scientific name to ensure you are ordering the correct plant.

Cattail is found all across North America, growing next to water. Like other waterside plants, Cattail provides erosion control and forage for animals.

It is suitable for land reclamation. Cattail is able to tolerate cold weather and occasional flooding.

Mountain Alder Quick Facts

Common Cattail Quick Facts

Zone: 1a
Zone: 1a
Height: 6 m (20 ft)
Height: 2.4 m (8 ft)
Spread: 3 m (10 ft)
Spread: 1.5 m (5 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: wet
Growth rate: medium
Growth rate: fast
Life span: medium
Life span: short
Growth form: multi-stemmed, thicket-forming
Spreading: rhizomes - medium, seeds - low, layering - low
Suckering: medium


Foliage: thick, flat
Bark: smooth, gray to brown
Flowers: yellow and green
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no


Native to: AB, BC, SK, YT, NT
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: river alder, speckled alder, thin-leaved alder, thinleaf alder, western river alder
Other Names: baco, bulrush, cat o nine tails, cossack asparagus, flag, reed mace, rush