Asteraceae

Romerillo

Bidens alba DC.

Family: Asteraceae
Genus: Bidens

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Romerillo: I forgot my ruler but the diameter of this Spanish needle blossom is approximately 2.5 honey bees. — Photo: Bob Peterson from North Palm Beach, Florida, Planet Earth!, CC BY-SA 2.0, from Wikimedia Commons

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Common names

By language (3)

Chinese: 白花鬼针草
English: Romerillo
Spanish: Coreopsis alba

Synonyms

Bidens leucanthema f. leucanthema
Bidens leucanthema var. leucanthema
Bidens odorata var. chilpancingensis R.E.Ballard
Bidens odorata var. rosea (Sch.Bip.) Melchert
Bidens pilosa f. decumbens Sherff
Bidens pilosa var. radiata Sch.Bip.

Characteristics

Growth habit: Forb/herb
Lifespan: Annual, Perennial
In the US and Canada: Hawaii: introduced, Lower 48 states: native, Navassa Island: native, Pacific Basin: introduced, Puerto Rico: native, U.S. Virgin Islands: native

Photos

Photo: Bob Peterson from North Palm Beach, Florida, Planet Earth!, CC BY-SA 2.0, from Wikimedia Commons
Photo: Ricard Busquets Reverte, CC BY 4.0, from iNaturalist
Photo: gailhampshire from Cradley, Malvern, U.K, CC BY 2.0, from Wikimedia Commons
Photo: keleenj3, CC BY-SA 4.0, from Pl@ntNet via GBIF
Photo: Mark, CC BY 4.0, from iNaturalist
Photo: Zbigniew Niepokój, CC BY-SA 4.0, from Wikimedia Commons
Photo: Zeni Everaldo, CC BY-SA 4.0, from Pl@ntNet via GBIF
Photo: Ben Costamagna, CC BY 4.0, from iNaturalist
Photo: Zbigniew Niepokój, CC BY-SA 4.0, from Wikimedia Commons
Photo: sinh nguyen, CC BY-SA 4.0, from Pl@ntNet via GBIF
Photo: David Garza, CC BY 4.0, from iNaturalist
Photo: Zbigniew Niepokój, CC BY-SA 4.0, from Wikimedia Commons

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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.