North America Native Plant

Quillwort

Botanical name: Isoetes ×foveolata

USDA symbol: ISFO

Life cycle: perennial

Habit: grass

Native status: Native to Canada âš˜ Native to the lower 48 states  

Discovering the Mysterious Quillwort: A Living Fossil in Your Local Wetlands Have you ever spotted what looks like tiny, spiky grass poking up from the muddy edges of a pond and wondered what on earth it could be? You might have encountered one of nature’s most ancient survivors – the ...

Discovering the Mysterious Quillwort: A Living Fossil in Your Local Wetlands

Have you ever spotted what looks like tiny, spiky grass poking up from the muddy edges of a pond and wondered what on earth it could be? You might have encountered one of nature’s most ancient survivors – the quillwort! These fascinating little plants are like living time capsules, virtually unchanged for hundreds of millions of years.

What Exactly Is a Quillwort?

Quillworts (Isoetes ×foveolata) aren’t actually grasses at all, despite their grass-like appearance. They’re part of an ancient group of plants called lycopods or fern allies – think of them as the quirky cousins of ferns that decided to take up residence in the water. This particular species is a hybrid, which makes it extra special in the plant world.

These perennial plants are true natives, calling both Canada and the lower 48 states home. You’ll find them naturally occurring in Ontario, Connecticut, Massachusetts, New Hampshire, and New Jersey, where they’ve been quietly doing their thing in wetland habitats for millennia.

The Ultimate Wetland Specialists

Here’s where quillworts get really interesting – they’re what botanists call obligate wetland plants. This fancy term simply means they almost always live in wetlands and are perfectly adapted to life in and around water. You’ll typically spot them in:

  • Shallow pond margins
  • Lake shores
  • Muddy wetland edges
  • Areas that flood seasonally

Identifying Your Wetland Find

Quillworts are pretty distinctive once you know what to look for. They form small clumps of narrow, tubular leaves that shoot straight up from their base like a tiny green fountain. The leaves are hollow and feel somewhat rigid to the touch – hence the quill in their name. They’re typically just a few inches tall and have a subtle, understated beauty that’s easy to overlook if you’re not paying attention.

Unlike flowering plants, quillworts reproduce through spores, much like ferns do. You won’t find any showy blooms here, but there’s something wonderfully mysterious about these ancient reproductive methods.

Are Quillworts Beneficial for Gardens?

While quillworts aren’t your typical garden plant, they do serve important ecological functions. In their natural wetland habitats, they help stabilize soil and provide habitat for small aquatic creatures. However, they’re notoriously difficult to cultivate and have very specific habitat requirements.

For most gardeners, quillworts are better appreciated in their natural settings rather than attempted in home landscapes. They’re living links to our planet’s ancient past and deserve our respect and protection in the wild spaces where they thrive.

A Plant Worth Protecting

The next time you’re exploring a wetland area in the northeastern states or Ontario, keep your eyes peeled for these remarkable little survivors. Quillworts remind us that not all of nature’s treasures are big and showy – sometimes the most fascinating plants are the quiet, unassuming ones that have been perfecting their survival strategies since before the dinosaurs roamed the earth.

Rather than trying to bring them home, consider supporting wetland conservation efforts that protect the specialized habitats these ancient plants call home. After all, some plants are best admired where nature intended them to be.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Northcentral & Northeast

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

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 ×foveolata A.A. Eaton ex R. Dodge (pro sp.) [engelmannii × tuckermannii] - quillwort

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