pillwort
nounEtymology From pill + wort.
1
Any plant of the genus Pilularia of small aquatic ferns. The sporangia are borne in spherical sporocarps ("pills") which form in the axils of leaves.
- Synonyms
- peppergrass
- Derived terms
- American pillwort, austral pillwort, Dragon Mountain pillwort, European pillwort, least pillwort