// SPECIES PROFILE · PERENNIAL · NATIVE

Engelmann's quillwort

Isoetes engelmannii

Engelmann's quillwort (Isoetes engelmannii) is a perennial in the — family. Native range includes AR, MO. Hardy in zones 3a–9a. Mature size 6"–3'.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 26 U.S. states, including AL, AR, CT, DE, GA, IL…
USDA hardiness: Zones 3a–9a
Mature size: 6"–3'
Sun: —
Water: —
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Engelmann's quillwort (Isoetes engelmannii) — *Isoetes engelmannii* — Engelmann's quillwort. Photo by W. Carl Taylor. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. Courtesy of USDA NRCS Wetland Science Institute via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Engelmann's quillwort (Isoetes engelmannii) is a perennial in the — family. Native range includes AR, MO. Hardy in zones 3a–9a. Mature size 6"–3'.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, engelmann's quillwort pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Blue-Eyed Grass (Sisyrinchium angustifolium), Butterfly Milkweed (Asclepias tuberosa), Cardinal Flower (Lobelia cardinalis).