Rubiaceae
River false buttonweed
Spermacoce confusa
- Family
- Rubiaceae
- Genus
- Spermacoce
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Common names
By language (1)
- English
- River false buttonweed
Characteristics
- Growth habit
- Forb/herb, Subshrub
- Lifespan
- Annual
- In the US and Canada
- Puerto Rico: native, U.S. Virgin Islands: native
Photos
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
More in Spermacoce
- Winged false buttonweedSpermacoce alataRubiaceae
- Shrubby false buttonweedSpermacoce verticillataRubiaceae
- Prostrate false buttonweedSpermacoce ocymoidesRubiaceae
- Prostrate false buttonweedSpermacoce prostrataRubiaceae
- Spermacoce remotaRubiaceae
- MadanaghantiSpermacoce articularisRubiaceae
- Oval-leaf false buttonweedSpermacoce latifoliaRubiaceae
- Smooth false buttonweedSpermacoce glabraRubiaceae
- Spermacoce hispidaRubiaceae
- Broadleaf false buttonweedSpermacoce ovalifoliaRubiaceae
- Spermacoce stachydeaRubiaceae
- Spermacoce brachysepalaRubiaceae
Sources: classification 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.