| 词条 | Erigeron trifidus |
| 释义 |
|image=Erigeron_trifidus_1.jpg |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |tribus = Astereae |genus = Erigeron |species = E. trifidus |binomial = Erigeron trifidus |binomial_authority = Hook. 1834 not Schltdl. 1856 nor Larrañaga 1923 }}Erigeron trifidus is a Canadian species of flowering plant in the daisy family known by the common name Alberta fleabane.[1] It is native to the provinces of Alberta and British Columbia in western Canada.[1]Erigeron trifidus grows on talus and scree slopes in alpine zones at high elevations. It is a small perennial herb rarely more than 10 centimeters (4 inches) tall, producing a branching underground caudex. Leaves are usually 3-lobed, up to 3 cm (1.2 inches) long. The inflorescence is made up of only one flower heads per stem. Each head contains 20–40 white, lavender, or pink ray florets surrounding numerous yellow disc florets.[2] References1. ^Biota of North America Program 2014 county distribution map 2. ^1 Flora of North America, Erigeron trifidus Hooker, 1834. Alberta fleabane External links
4 : Erigeron|Flora of Alberta|Flora of British Columbia|Plants described in 1902 |
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