North America Native Plant

Algal Bulrush

Botanical name: Websteria

USDA symbol: WEBST

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Algal Bulrush (Websteria): A Mystery Plant of the Southeast Every now and then, gardeners and plant enthusiasts encounter botanical mysteries that leave even experienced horticulturists scratching their heads. The algal bulrush, scientifically known as Websteria, appears to be one of those enigmatic plants that has managed to fly under the ...

Algal Bulrush (Websteria): A Mystery Plant of the Southeast

Every now and then, gardeners and plant enthusiasts encounter botanical mysteries that leave even experienced horticulturists scratching their heads. The algal bulrush, scientifically known as Websteria, appears to be one of those enigmatic plants that has managed to fly under the radar of mainstream botanical literature.

What We Know About Algal Bulrush

According to limited available information, Websteria is a perennial graminoid – meaning it’s a grass or grass-like plant similar to sedges, rushes, or true grasses. This native species reportedly calls the southeastern United States home, with documented presence in Alabama, Arkansas, Florida, Georgia, and Louisiana.

The plant’s classification as a graminoid suggests it likely has the characteristic narrow leaves and clustered growth pattern typical of this plant family, though specific details about its appearance remain elusive.

The Information Gap

Here’s where things get interesting – and frustrating for curious gardeners. Despite its intriguing common name algal bulrush, comprehensive information about this plant’s characteristics, growing requirements, and garden applications is surprisingly scarce. Key details that gardeners typically rely on remain unknown, including:

  • Specific growing conditions and soil preferences
  • Wildlife and pollinator benefits
  • Wetland status and water requirements
  • Propagation methods
  • Invasive or conservation status
  • Mature size and growth habits

A Word of Caution for Gardeners

Without clear information about Websteria’s invasive potential, conservation status, or specific growing requirements, we cannot provide reliable planting recommendations. This lack of available data raises some important considerations:

If you encounter this plant for sale or mentioned in gardening circles, proceed with caution. Unknown plants can sometimes turn out to be invasive species or require very specific conditions that aren’t immediately obvious.

Alternative Native Graminoids for Your Garden

While we wait for more information about algal bulrush to surface, southeastern gardeners have plenty of well-documented native grass and grass-like options to choose from:

  • Soft rush (Juncus effusus) – excellent for wet areas
  • Chairmaker’s bulrush (Schoenoplectus americanus) – great for rain gardens
  • Little bluestem (Schizachyrium scoparium) – drought-tolerant prairie grass
  • Switchgrass (Panicum virgatum) – versatile native grass

The Bottom Line

Websteria remains something of a botanical puzzle. Until more comprehensive information becomes available about this mysterious algal bulrush, gardeners interested in native graminoids are better served by choosing well-researched alternatives with known characteristics and benefits.

If you happen to have reliable information about Websteria or have encountered it in the wild, consider reaching out to local botanical societies or native plant groups – they’d likely be very interested in learning more about this elusive southeastern native!

Algal Bulrush

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

Cyperaceae Juss. - Sedge family

Genus

Websteria S.H. Wright - algal bulrush

Species

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