Isoetaceae
Quillwort Family
The Isoetaceae family (Quillwort Family) is a botanical family placed in the order Isoetales. In the SASYA catalogue it spans 2 species. Its members are predominantly herbs.
Browse all 2 species ↓
Small, tufted, grass-like aquatic or semi-aquatic herbs with quill-shaped, hollow leaves arising directly from a swollen, bulb-like base; spores form in small chambers embedded at the base of each leaf rather than in visible external cones or clusters.
Neither a true fern nor a flowering plant, this ancient lycophyte lineage reproduces by hidden internal spore chambers at the leaf base rather than any visible flower, cone, or exposed spore cluster.
Which Isoetaceae species is this?
Answer what you can see and narrow it down to a single Isoetaceae species.
To check whether a plant belongs to Isoetaceae, compare the leaf arrangement, leaf type, flower symmetry, fruit type, and one distinctive marker together. A single feature can mislead; the family pattern is the combination.
Learn the full family-identification methodNotable members
All 2 species in ISOETACEAE
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