| 词条 | Erigeron filifolius |
| 释义 |
|image= |image_caption= |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |tribus = Astereae |genus = Erigeron |species = E. filifolius |binomial = Erigeron filifolius |binomial_authority =(Hook.) Nutt. |synonyms_ref=[1] |synonyms=*Erigeron filifolium (Hook.) Nutt.[2][3]
|}}Erigeron filifolius is a North American species of flowering plants in the daisy family known by the common names thread-leaf fleabane.[4]Erigeron filifolius is widespread across much of western North America. It has been found in western Canada (British Columbia) and the western United States (primarily the Cascades of Washington, Oregon, and northern California with additional populations in northern Nevada, Idaho, northwestern Montana, and northern Utah).[4][5]Erigeron filifolius is a branched perennial herb up to 50 centimeters (20 inches) in height. Leaves are long and thin, often thread-like, up to 8 cm (3.2 inches) long. Each stem sometimes produces only 1 flower head per stem, sometimes flat-topped clusters of 10 or more. Each head may contain as many as 125 white, blue, pink, or lavender ray florets surrounding numerous yellow disc florets.[6] References1. ^The Plant List, Erigeron filifolius (Hook.) Nutt. {{Taxonbar|from=Q15589831}}{{Astereae-stub}}2. ^Tropicos, Erigeron filifolius (Hook.) Nutt. 3. ^[https://www.biodiversitylibrary.org/page/36318029#page/330/mode/1up Nuttall, Thomas 1840. Transactions of the American Philosophical Society, new series 7: 308] as Erigeron filifolium 4. ^Biota of North America Program 2014 county distribution map 5. ^Calflora taxon report, University of California, Erigeron filifolius (Hook.) Nutt., threadleaf fleabane 6. ^1 Flora of North America, Erigeron filifolius (Hooker) Nuttall, Thread-leaf fleabane 7 : Erigeron|Flora of the Western United States|Flora of British Columbia|Flora of California|Plants described in 1834|Taxa named by William Jackson Hooker|Taxa named by Thomas Nuttall |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。