Skip to main content

Bolander's Quillwort

Isoetes bolanderi

Last reviewed: August 2026

Bolander's Quillwort (Isoetes bolanderi)
Photo: (c) Andrey Zharkikh, some rights reserved (CC BY)

Toxicity unknown

Bolander's Quillwort (Isoetes bolanderi) 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 shade

Water

high

Size

1"–8" H × 1"–4" W

Bloom

N/A

Native to

AZ, CA, CO, ID and 7 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 437 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Bolander's quillwort is a small, grass-like aquatic fern that forms tight clumps of thin, upright leaves. This uncommon native requires consistently wet or waterlogged conditions and is typically found around pond edges, wetlands, or bog gardens. It maintains its small, neat appearance year-round but needs specialized growing conditions to thrive.

In an HOA neighborhood

Bolander's 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
  • Very uncommon and unfamiliar to most people
  • May appear sparse or struggling without perfect conditions

Wildlife value

As a specialized aquatic plant, it provides habitat for wetland insects and small aquatic creatures. Its primary value is in supporting wetland ecosystem health rather than attracting typical garden pollinators.

Common questions

How much sun does Bolander's Quillwort need?
Bolander's Quillwort grows best in part shade conditions.
Where is Bolander's Quillwort native?
Bolander's Quillwort (Isoetes bolanderi) is native to AZ, CA, CO, ID and 7 more states, per the World Checklist of Vascular Plants (Kew).
Is Bolander's Quillwort HOA-friendly?
Bolander's 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.

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

Not sure where to start? Take the 2-minute yard quiz