Isoetaceae
Western quillwort
Isoetes occidentalis
- Family
- Isoetaceae
- Genus
- Isoetes
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Common names
By language (2)
- English
- Western quillwort
- Persian
- علف شهپر غربی
Synonyms
- Isoetes echinospora f. flettii (A.A.Eaton) Clute
- Isoetes echinospora subsp. flettii (A.A.Eaton) Piper & Beattie
- Isoetes echinospora var. flettii A.A.Eaton
- Isoetes flettii (A.A.Eaton) N.Pfeiff.
- Isoetes howellii f. piperi (A.A.Eaton) Clute
- Isoetes howellii var. piperi Clute
- Isoetes lacustris subsp. paupercula (Engelm.) Feilberg
- Isoetes lacustris var. paupercula Engelm.
- Isoetes macrospora f. paupercula (Engelm.) Clute
- Isoetes maritima var. flettii (A.A.Eaton) C.F.Reed
- Isoetes occidentalis subsp. paupercula (Engelm.) Feilberg
- Isoetes occidentalis var. piperi A.Nelson & J.F.Macbr.
- Isoetes paupercula A.A.Eaton
- Isoetes piperi A.A.Eaton
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Alaska: native, Canada: native, Lower 48 states: native
Photos
Photo: Dean Wm. Taylor, CC BY 2.0, from Wikimedia Commons 
Photo: Timothy McNitt, CC BY 4.0, from iNaturalist 
Photo: Timothy McNitt, CC BY 4.0, from iNaturalist 
Photo: Timothy McNitt, CC BY 4.0, from iNaturalist 
Photo: elik03, CC BY 4.0, from iNaturalist 
Photo: elik03, CC BY 4.0, from iNaturalist 
Photo: Deniz Wilson, CC0, from iNaturalist 
Photo: Timothy McNitt, CC BY 4.0, from iNaturalist 
Photo: Jason Grant, CC BY 4.0, from iNaturalist 
Photo: Timothy McNitt, CC BY 4.0, from iNaturalist 
Photo: Timothy McNitt, CC BY 4.0, from iNaturalist 
Photo: Timothy McNitt, CC BY 4.0, from iNaturalist
More in Isoetes
- Lake quillwortIsoetes lacustrisIsoetaceae
- Isoetes echinosporaIsoetaceae
- Mueller’s reed snakeIsoetes muelleriIsoetaceae
- Bolander's quillwortIsoetes bolanderiIsoetaceae
- Maritime quillwortIsoetes maritimaIsoetaceae
- Isoetes andicolaIsoetaceae
- Appalachian quillwortIsoetes engelmanniiIsoetaceae
- Merlin's grassIsoetes tegetiformansIsoetaceae
- Appalachian quillwortIsoetes appalachianaIsoetaceae
- Shore quillwortIsoetes ripariaIsoetaceae
- Narrow quillwortIsoetes sinensisIsoetaceae
- Isoetes taiwanensisIsoetaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.