North America Native Plant

Anderson’s Alkaligrass

Botanical name: Puccinellia andersonii

USDA symbol: PUAN

Life cycle: perennial

Habit: grass

Native status: Native to Alaska ⚘ Native to Canada ⚘ Native to Greenland  

Synonyms: Phippsia andersonii (Swallen) Á. Löve & D. Löve (PHAN12)  ⚘  Puccinellia glabra Swallen (PUGL)  ⚘  Puccinellia triflora Swallen (PUTR)   

Anderson’s Alkaligrass: A Hardy Arctic Native for Specialized Gardens If you’re looking for a grass that can handle the harshest conditions Mother Nature can dish out, meet Anderson’s alkaligrass (Puccinellia andersonii). This tough little perennial grass might not win any beauty contests, but what it lacks in flashy looks, it ...

Rare plant alert!

Region: Conservation status by state

Status: S2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Uncertain taxonomy: ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Region: Conservation status by state

Anderson’s Alkaligrass: A Hardy Arctic Native for Specialized Gardens

If you’re looking for a grass that can handle the harshest conditions Mother Nature can dish out, meet Anderson’s alkaligrass (Puccinellia andersonii). This tough little perennial grass might not win any beauty contests, but what it lacks in flashy looks, it more than makes up for in resilience and specialized growing abilities.

What is Anderson’s Alkaligrass?

Anderson’s alkaligrass is a perennial grass native to some of the most challenging environments on Earth. You might also see it listed under its scientific synonyms like Phippsia andersonii, Puccinellia glabra, or Puccinellia triflora, but they’re all referring to the same hardy little plant.

As a graminoid (that’s botanist-speak for grass-like plant), this species belongs to the true grass family and has adapted to thrive in wet, salty conditions that would kill most other plants.

Where Does It Come From?

This grass is a true northerner, native to Alaska, various provinces in Canada (including Manitoba, Quebec, Yukon, Northwest Territories, and Nunavut), and Greenland. It’s perfectly at home in the Arctic and subarctic regions where few other plants dare to grow.

Should You Plant Anderson’s Alkaligrass?

Here’s where things get interesting. Anderson’s alkaligrass has a somewhat uncertain conservation status, with rankings of S2Q and S3Q in different areas. While the exact meanings of these rankings aren’t fully defined, they suggest this plant may have some conservation concerns. If you do decide to grow it, make sure you source it responsibly from reputable native plant nurseries.

This isn’t your typical lawn grass or garden border plant. Anderson’s alkaligrass is best suited for very specific situations:

  • Wetland restoration projects
  • Coastal gardens with saline conditions
  • Specialized native plant collections
  • Areas with alkaline, wet soils

Growing Conditions

If you’re thinking about growing Anderson’s alkaligrass, you’ll need to recreate its natural habitat. This plant is classified as an obligate wetland species in Alaska, meaning it almost always occurs in wetland conditions.

Here’s what this hardy grass needs:

  • Moisture: Consistently wet to boggy conditions
  • Soil: Tolerates alkaline and saline soils that would stress most plants
  • Climate: Extremely cold hardy (USDA zones 1-4)
  • Light: Full sun exposure

Landscape Role and Design Use

Don’t expect Anderson’s alkaligrass to be the star of your garden show. This is more of a behind-the-scenes player that excels in specialized roles. It works well as:

  • Ground cover in wetland gardens
  • Soil stabilization in wet, salty areas
  • Part of native grass mixtures for restoration
  • Educational plantings showcasing Arctic flora

Wildlife and Ecological Benefits

While specific wildlife benefits for Anderson’s alkaligrass aren’t well-documented, most native grasses provide some ecological value. As a wind-pollinated plant, it doesn’t offer much for pollinators directly, but it likely provides habitat and potentially food sources for small wildlife in its native range.

The Bottom Line

Anderson’s alkaligrass isn’t for everyone or every garden. It’s a specialized plant for specialized conditions. If you have a wetland area, are working on habitat restoration, or simply love collecting unusual native plants, this tough little grass might be worth considering. Just remember to source it responsibly given its potentially sensitive conservation status.

For most gardeners looking for native grass options, you might want to consider more widely available and easier-to-grow alternatives that are native to your specific region. But if you’re up for the challenge of growing one of nature’s toughest survivors, Anderson’s alkaligrass won’t disappoint in the resilience department!

Anderson’s Alkaligrass

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Puccinellia Parl. - alkaligrass

Species

Puccinellia andersonii Swallen - Anderson's alkaligrass

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA