North America Native Plant

Narrowleaf Bur-reed

Botanical name: Sparganium angustifolium

USDA symbol: SPAN2

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to Greenland âš˜ Native to the lower 48 states âš˜ Native to St. Pierre and Miquelon  

Synonyms: Sparganium emersum Rehmann var. angustifolium (Michx.) Roy L. Taylor & MacBryde (SPEMA)  âš˜  Sparganium emersum Rehmann var. multipedunculatum (Morong) Reveal (SPEMM)  âš˜  Sparganium multipedunculatum (Morong) Rydb. (SPMU3)   

Narrowleaf Bur-Reed: A Native Aquatic Gem for Water Gardens If you’re looking to add some wild, architectural flair to your water garden or bog area, narrowleaf bur-reed (Sparganium angustifolium) might just be the native plant you never knew you needed. This perennial wetland beauty brings a touch of untamed elegance ...

Rare plant alert!

Region: New Jersey

Status: Endangered, Listed Pinelands, Highlands Listed, SH: New Jersey Highlands region ⚘ New Jersey Pinelands region ⚘ Possibly Extinct: Known only from historical occurrences. Still some hope of rediscovery ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Narrowleaf Bur-Reed: A Native Aquatic Gem for Water Gardens

If you’re looking to add some wild, architectural flair to your water garden or bog area, narrowleaf bur-reed (Sparganium angustifolium) might just be the native plant you never knew you needed. This perennial wetland beauty brings a touch of untamed elegance to any aquatic landscape with its grass-like foliage and quirky, ball-shaped flower heads that look like nature’s own geometric art project.

What Makes Narrowleaf Bur-Reed Special

Narrowleaf bur-reed is a true North American native, naturally occurring across an impressively wide range from Alaska and Greenland all the way down through most of the lower 48 states and Canadian provinces. You’ll find this adaptable plant thriving in states from coast to coast, including Alaska, California, Maine, Colorado, and everywhere in between. It’s a testament to this plant’s hardiness that it can handle everything from the frigid Arctic to more temperate southern regions.

This perennial forb (that’s botanist-speak for a non-woody plant) has earned its place as an obligate wetland species across all regions of North America. Translation? This plant is practically married to water and wet conditions – it almost always grows in wetlands, making it a reliable choice for consistently moist garden spots.

A Word of Caution: Rarity Matters

Before you rush out to find this plant, there’s something important to know. In New Jersey, narrowleaf bur-reed is listed as endangered and protected in both the Pinelands and Highlands regions. If you’re gardening in areas where this plant is rare, please only source it from reputable native plant nurseries that propagate their stock responsibly – never collect from wild populations.

Garden Design and Landscape Role

Narrowleaf bur-reed shines in:

  • Water gardens and pond margins
  • Rain gardens and bioswales
  • Bog gardens
  • Naturalized wetland areas
  • Native plant landscapes with consistent moisture

The plant’s narrow, grass-like leaves create lovely textural contrast against broader-leafed wetland companions, while its distinctive spherical seed heads add architectural interest that lasts well into fall and winter.

Growing Conditions and Care

This is definitely not a plant for your average flower border! Narrowleaf bur-reed has very specific moisture requirements:

  • Moisture: Consistently wet soil to shallow standing water
  • Light: Full sun to partial shade
  • Hardiness: Extremely cold tolerant, suitable for zones 2-8
  • Soil: Any soil type, as long as it stays wet

Planting and Maintenance Tips

Once you’ve found a responsibly-sourced plant, narrowleaf bur-reed is surprisingly low-maintenance – if you can meet its water needs. Plant it at the edge of a pond, in a bog garden, or anywhere you have consistently saturated soil. The plant will naturalize over time, spreading to form colonies in ideal conditions.

Minimal care is needed once established. You can cut back the foliage in late winter if desired, though many gardeners prefer to leave the interesting seed heads for winter interest and wildlife food.

Wildlife and Ecological Benefits

While narrowleaf bur-reed doesn’t attract pollinators (it’s wind-pollinated), it provides valuable habitat and food for wildlife. The seeds are particularly important for waterfowl, and the plant’s structure offers shelter for various aquatic creatures and insects.

Is Narrowleaf Bur-Reed Right for Your Garden?

This native beauty is perfect for gardeners who want to create authentic wetland habitats or who have naturally boggy areas that need some interesting vegetation. However, it’s definitely a specialized plant – if you don’t have consistently wet conditions, this isn’t the plant for you.

Consider narrowleaf bur-reed if you have a water feature, rain garden, or naturally wet area and want to support native ecosystems while adding unique architectural interest to your landscape. Just remember to source responsibly and appreciate that you’re growing a piece of North America’s natural wetland heritage.

Narrowleaf Bur-reed

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

Typhales

Family

Sparganiaceae Hanin - Bur-reed family

Genus

Sparganium L. - bur-reed

Species

Sparganium angustifolium Michx. - narrowleaf bur-reed

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