Erigeron speciosus | |
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Main Botanical Garden, Academy of Sciences, Moscow, Russia | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Erigeron |
Species: | E. speciosus
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Binomial name | |
Erigeron speciosus | |
Synonyms [1] | |
Synonymy
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Erigeron speciosus is a widespread North American species of flowering plants in the family Asteraceae known by the common names aspen fleabane, [2] garden fleabane, [3] and showy fleabane. [4]
E. speciosus is a perennial herb up which grows up to 100 centimetres (39 inches) tall, producing underground rhizomes and a woody caudex. The inflorescence generally contains 2–20 flower heads per stem. Each head contains 75–150 white, lavender or blue ray florets surrounding many yellow disc florets. [4] [5] Flowers bloom from June to October. [4] [6]
The species is similar to E. subtrinervis, the stems and leaves of which are hairy. [6]
The specific epithet speciosus means 'pretty'. [6]
The species has been found in western Canada and the United States, from Alberta and British Columbia south as far as Arizona and New Mexico, [6] [7] with some isolated populations in the Mexican state of Baja California. It grows in open coniferous forests. [6]