Isoetes howellii --- Quillwort --- Isoetaceae

Isoetes howellii --- Quillwort --- Isoetaceae

Isoetes howellii (at right) --- Quillwort --- Isoetaceae
Note swollen leaf bases, site of sporangia.

Isoetes howellii --- Quillwort --- Isoetaceae
Close-up of leaf base sporangium (adaxial view).

Pronunciation

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