Polygonaceae
Cottonheads
Nemacaulis denudata
- Family
- Polygonaceae
- Genus
- Nemacaulis
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Common names
By language (2)
- English
- Cottonheads
- Portuguese
- Nemacaulis
Synonyms
- Nemacaulis denudata var. denudata
Flowers
- In flower
- March to May, July, September (from 12 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual
- In the US and Canada
- Lower 48 states: native
Photos
FlowerPhoto: John Cowles, CC0, from iNaturalist 
FlowerPhoto: Sula Vanderplank, CC BY 4.0, from iNaturalist 
FlowerPhoto: Alex Heyman, CC0, from iNaturalist 
FlowerPhoto: sdash, CC BY 4.0, from iNaturalist 
Photo: Trevor Van Loon, CC BY 4.0, from iNaturalist 
Photo: Matthew Danielczyk, CC0, from iNaturalist 
Photo: Mike Butler, CC BY 4.0, from iNaturalist 
Photo: Sula Vanderplank, CC BY 4.0, from iNaturalist 
Photo: Luc Lagarde, CC0, from iNaturalist 
Photo: laiet17, CC0, from iNaturalist 
Photo: laiet17, CC0, from iNaturalist 
Photo: James C. Davis, CC BY-SA 4.0, from iNaturalist
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.