Bolander's Quillwort
Isoetes bolanderi
Last reviewed: August 2026

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 areaBrowse plants for this ecoregion
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