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Dahlias
Dahlia
Dahlia (UK: DAY-lee-ə, US: DA(H)L-yə, DAYL-yə) is a genus of bushy, tuberous, herbaceous perennial plants native to Mexico and Central America. Dahlias are members of the Asteraceae (synonym name: Compositae) family of dicotyledonous plants, its relatives include the sunflower, daisy, chrysanthemum, and zinnia. There are 49 species of dahlia, with flowers in almost every hue (except blue), with hybrids commonly grown as garden plants.
Dahlias were known only to the Aztecs and other southern North American peoples until the Spanish conquest, after which the plants were brought to Europe. The tubers of some varieties are of medicinal and dietary value to humans because, in common with species of Inula and many other flowering plants, they use inulin, a polymer of the fruit sugar fructose, instead of starch as a storage polysaccharide.
43 branches of this genus, most-observed first
Garden Dahlia
speciesDahlia pinnata
Red Dahlia
speciesDahlia coccinea
Tree Dahlia
speciesDahlia imperialis
Bedding Dahlia
speciesDahlia merckii
Dahlia sorensenii
speciesDahlia sorensenii
Dahlia sherffii
speciesDahlia sherffii
Dahlia × hortensis
hybridDahlia × hortensis
Dahlia australis
speciesDahlia australis
Dahlia tubulata
speciesDahlia tubulata
Dahlia campanulata
speciesDahlia campanulata
Dahlia tenuicaulis
speciesDahlia tenuicaulis
Tree Dahlia
speciesDahlia excelsa
Dahlia pugana
speciesDahlia pugana
Dahlia scapigeroides
speciesDahlia scapigeroides
Dahlia apiculata
speciesDahlia apiculata
Dahlia tenuis
speciesDahlia tenuis
Dahlia scapigera
speciesDahlia scapigera
Dahlia brevis
speciesDahlia brevis
Dahlia wixarika
speciesDahlia wixarika
Dahlia linearis
speciesDahlia linearis
Dahlia tamaulipana
speciesDahlia tamaulipana
Dahlia rudis
speciesDahlia rudis
Dahlia foeniculifolia
speciesDahlia foeniculifolia
Dahlia moorei
speciesDahlia moorei
Dahlia hintonii
speciesDahlia hintonii
Dahlia cordifolia
speciesDahlia cordifolia
Dahlia rupicola
speciesDahlia rupicola
Dahlia cuspidata
speciesDahlia cuspidata
Dahlia neglecta
speciesDahlia neglecta
Dahlia spectabilis
speciesDahlia spectabilis
Dahlia sublignosa
speciesDahlia sublignosa
Dahlia pteropoda
speciesDahlia pteropoda
Dahlia gypsicola
speciesDahlia gypsicola
Dahlia atropurpurea
speciesDahlia atropurpurea
Dahlia congestifolia
speciesDahlia congestifolia
Dahlia calzadana
speciesDahlia calzadana
Dahlia dissecta
speciesDahlia dissecta
Dahlia mollis
speciesDahlia mollis
Dahlia purpusii
speciesDahlia purpusii
Dahlia macdougallii
speciesDahlia macdougallii
Dahlia hjertingii
speciesDahlia hjertingii
Dahlia parvibracteata
speciesDahlia parvibracteata
Dahlia mixtecana
speciesDahlia mixtecana
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Dahlia in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 58465.