North America Native Plant

Virginia Quillwort

Botanical name: Isoetes virginica

USDA symbol: ISVI

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Virginia Quillwort: A Rare Aquatic Treasure for Wetland Gardens Meet the Virginia quillwort (Isoetes virginica), one of nature’s more mysterious aquatic plants. This isn’t your typical garden center find – it’s a rare, primitive plant that’s been quietly thriving in wetlands for millions of years. If you’ve never heard of ...

Rare plant alert!

Region: Alabama

Status: S1S3: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ 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 ⚘ 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) ⚘

Region: Alabama

Virginia Quillwort: A Rare Aquatic Treasure for Wetland Gardens

Meet the Virginia quillwort (Isoetes virginica), one of nature’s more mysterious aquatic plants. This isn’t your typical garden center find – it’s a rare, primitive plant that’s been quietly thriving in wetlands for millions of years. If you’ve never heard of a quillwort before, you’re not alone! These fascinating plants are living fossils that deserve a closer look.

What Exactly Is a Virginia Quillwort?

Virginia quillwort belongs to an ancient group of plants called quillworts, which are more closely related to ferns than to the grasses they resemble. Despite their grass-like appearance, these perennial plants reproduce through spores rather than seeds or flowers. Think of them as the quiet cousins of ferns that decided to make their home in shallow water.

This particular species produces small, quill-shaped leaves that emerge from an underground corm (a bulb-like structure). The leaves are typically 2-6 inches long and have a distinctive grass-like appearance, though they’re much more specialized for aquatic life.

Where Does Virginia Quillwort Call Home?

As its name suggests, Virginia quillwort is native to the southeastern United States, with Virginia being its primary stronghold. This native species is specifically adapted to the unique conditions found in the Eastern Mountains and Piedmont regions.

A Word of Caution: This Plant Is Rare

Here’s something important every gardener should know: Virginia quillwort has a global conservation status of S1S3, meaning its populations are critically imperiled to vulnerable. In Alabama’s Piedmont region, it’s ranked as S2 (imperiled). This isn’t a plant you should casually dig up from the wild or purchase from questionable sources.

If you’re interested in growing this species, only work with reputable native plant nurseries that practice responsible propagation methods. Better yet, consider supporting wetland conservation efforts in areas where this species naturally occurs.

Is Virginia Quillwort Right for Your Garden?

This species is an obligate wetland plant, meaning it almost always occurs in wetlands and requires consistently wet conditions to survive. It’s perfectly suited for:

  • Bog gardens and constructed wetlands
  • Pond margins and shallow water features
  • Native plant restoration projects
  • Specialized aquatic plant collections

However, Virginia quillwort isn’t for everyone. It requires very specific growing conditions and won’t provide the showy blooms or dramatic foliage that many gardeners seek. Its appeal lies in its ecological significance and unique evolutionary story rather than its ornamental value.

Growing Conditions and Care

If you’re committed to growing Virginia quillwort responsibly, here’s what you need to know:

  • Water requirements: Must be grown in shallow water or permanently saturated soil
  • Light: Full sun to partial shade
  • Soil: Muddy, organic-rich substrates
  • Hardiness: Thrives in USDA zones 6-9
  • Maintenance: Very low once established in proper conditions

Wildlife and Ecological Benefits

While Virginia quillwort doesn’t offer nectar for pollinators (since it doesn’t flower), it plays important ecological roles in wetland ecosystems. It helps stabilize soil in shallow water areas and provides habitat structure for small aquatic organisms and amphibians.

The Bottom Line

Virginia quillwort is a fascinating piece of botanical history that’s unfortunately becoming increasingly rare. Unless you’re specifically creating a wetland habitat or participating in conservation efforts, this isn’t the plant for your average garden. Its specialized needs and conservation status make it better suited for dedicated native plant enthusiasts and restoration projects.

If you’re interested in supporting this species, consider donating to wetland conservation organizations or participating in citizen science projects that monitor rare aquatic plants. Sometimes the best way to grow a rare plant is to protect the wild places where it naturally thrives.

Virginia Quillwort

Classification

Group

Quillwort

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Lycopodiophyta - Lycopods

Subdivision
Class

Lycopodiopsida

Subclass
Order

Isoetales

Family

Isoetaceae Dumort. - Quillwort family

Genus

Isoetes L. - quillwort

Species

Isoetes virginica N.E. Pfeiffer - Virginia quillwort

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