Marsileaceae

American pillwort

Pilularia americana A.Br.

Family: Marsileaceae
Genus: Pilularia

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Pilularia americanaMarsileaceae

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Common names

By language (2)

Chinese: 美国线叶蘋
English: American pillwort

Synonyms

Calamistrum americanum Kuntze
Calamistrum mandonii Kuntze
Pilularia caroliniana A.Braun
Pilularia mandonii A.Br.
Pilularia mandonii A.Braun
Pilularia valdiviana Phil.

Characteristics

Growth habit: Forb/herb
Lifespan: Perennial
In the US and Canada: Lower 48 states: native

More in Pilularia

PillwortPilularia globuliferaMarsileaceae
Dwarf pillwortPilularia minutaMarsileaceae
Pilularia novae-hollandiaeMarsileaceae
Pilularia dracomontanaMarsileaceae
Pilularia bokkeveldensisMarsileaceae
Pilularia ethiopicaMarsileaceae

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.