Lythraceae
Lowland rotala
Rotala ramosior
- Family
- Lythraceae
- Genus
- Rotala
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Common names
By language (3)
- Chinese
- 美洲水豬母乳, 美洲节节菜
- English
- Lowland rotala
- Spanish
- Hierba del piojo
Synonyms
- Ammannia catholica Hook. & Arn. ex Seem.
- Ammannia dentifera A.Gray
- Ammannia humilis Michx.
- Ammannia linearifolia Raf.
- Ammannia monoflora Blanco
- Ammannia multicaulis Raf.
- Ammannia occidentalis (Spreng.) DC.
- Ammannia occidentalis var. pygmaea Chapm.
- Ammannia ramosa Hill
- Ammannia ramosior L.
- Boykiana humilis (Michx.) Raf.
- Boykinia humilis Raf. ex S.Watson
- Boykinia humilis (Michx.) Raf.
- Peplis occidentalis Spreng.
- Rotala dentifera (A.Gray) Koehne
- Rotala ramosior var. dentifera (A.Gray) Lundell
- Rotala ramosior var. interior Fernald & Griscom
- Rotala ramosior var. ramosior
- Rotala ramosior var. typica Fernald & Griscom
Flowers
- In flower
- July to October (from 85 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual
- In the US and Canada
- Canada: native, Lower 48 states: native, Puerto Rico: native
Photos
FlowerPhoto: Nathan Aaron, CC BY 4.0, from iNaturalist 
FlowerPhoto: Chris Hoess, CC BY-SA 4.0, from iNaturalist 
FlowerPhoto: Becky Dill, CC0, from iNaturalist 
FlowerPhoto: Anne Parker, CC BY 4.0, from iNaturalist 
FlowerPhoto: Jonathan Sowers, CC0, from iNaturalist 
FruitPhoto: Jay Horn, CC BY 4.0, from iNaturalist 
Photo: Nolan Exe, CC BY 4.0, from iNaturalist 
Photo: Eric Knight, CC BY 4.0, from iNaturalist 
Photo: botanygirl, CC BY 4.0, from iNaturalist 
Photo: Bonnie Semmling, CC BY 4.0, from iNaturalist 
Photo: Clay Gibbons, CC BY 4.0, from iNaturalist 
Photo: hr_dragonfly, CC BY 4.0, from iNaturalist
More in Rotala
- Indian toothcupRotala indicaLythraceae
- Dwarf rotalaRotala rotundifoliaLythraceae
- Rotala densifloraLythraceae
- Rotala malabaricaLythraceae
- Rotala hippurisLythraceae
- Diminutive rotalaRotala mexicanaLythraceae
- Rotala macrandraLythraceae
- Rotala tenuisLythraceae
- Rotala wallichiiLythraceae
- Rotala andamanensisLythraceae
- Rotala capensisLythraceae
- Rotala cordataLythraceae
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.