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Blackfoot Quillwort

Isoetes melanopoda

Last reviewed: August 2026

Blackfoot Quillwort (Isoetes melanopoda)
Photo: Nathan Aaron / Wikimedia Commons (CC BY 4.0)

Toxicity unknown

Blackfoot Quillwort (Isoetes melanopoda) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part sun

Water

medium

Size

2"–8" H × 2"–8" W

Bloom

N/A

Native to

AL, AR, GA, IA and 17 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 459 programs across 44 states, each with a link to the provider and the date we last checked it.

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Picture natives in your own yard

Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like Blackfoot Quillwort.

Black-footed quillwort is a small, grass-like aquatic fern that forms compact clumps of narrow, quill-shaped leaves. This unusual native plant thrives in seasonal wetlands and pond edges where it remains green year-round. It's best suited for specialized water garden applications or naturalized wet areas.

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In an HOA neighborhood

Blackfoot Quillwort takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Requires specialized wetland conditions
  • Unfamiliar appearance may seem weedy
  • Not suitable for typical landscaping

Wildlife value

Provides habitat for aquatic invertebrates and amphibians in wetland settings. The dense foliage offers shelter for small wildlife in pond and marsh environments.

Common questions

How much sun does Blackfoot Quillwort need?
Blackfoot Quillwort grows best in part sun conditions.
Where is Blackfoot Quillwort native?
Blackfoot Quillwort (Isoetes melanopoda) is native to AL, AR, GA, IA and 17 more states, per the World Checklist of Vascular Plants (Kew).
Is Blackfoot Quillwort HOA-friendly?
Blackfoot Quillwort takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Blackfoot Quillwort? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.