Northern Prairie Wildlife Research Center
Western Wetland Flora
Field Office Guide to Plant Species
Isoetes echinospora Durieu
- Family: Quillwort (Isoetaceae)
- Spores: May-June
- Field Marks: This always submersed quillwort has coarse leaves not more than 3 1/2 inches long.
- Habitat: Lakes.
- Habit: Submersed perennial plant with a 2-lobed corm.
- Stems: Underwater as a 2-lobed corm.
- Leaves: Elongated, grass-like, coarse, up to 30 in number, up to 3 1/2 inches long, swollen at the base to contain the sporangia.
- Sporangia: Borne within the swollen, paler base of each leaf.
- Spores: White or cream-colored with minute spines (when viewed through a microscope).
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(Botrychium lunaria )
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(Isoetes lacustris )