| 词条 | Erigeron sivinskii |
| 释义 |
|regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |tribus = Astereae |genus = Erigeron |species = E. sivinskii |binomial = Erigeron sivinskii |binomial_authority =G.L.Nesom |synonyms_ref= |synonyms= |}}Erigeron sivinskii is a North American species of flowering plant in the daisy family known by the common name Sivinski’s fleabane..[1] It has been found in the southwestern United States, in the states of Arizona and New Mexico.[1][2] The species is named for botanist and forester Robert C. Sivinski.[3] Erigeron sivinskii grows on red clay and shale slopes in desert scrub and open pinyon-juniper woodland. It is a small perennial herb rarely more than 8 cm (3.2 inches) tall. The inflorescence generally contains only one flower heads per stem. Each head contains 21–33 ray florets each ray white with a lilac stripe down the middle. These surround many yellow disc florets.[4][3]References1. ^Biota of North America Program 2014 county distribution map {{Taxonbar|from=Q15592996}}{{Astereae-stub}}2. ^Zion Plant List, United States Department of the Interior, National Park Service 3. ^1 [https://www.biodiversitylibrary.org/page/13167833#page/87/mode/1up Nesom, Guy L. 1992. Phytologia 71(5): 416–418] 4. ^1 Flora of North America, Erigeron sivinskii G. L. Nesom, 1992. Sivinski’s fleabane 4 : Erigeron|Flora of Arizona|Flora of New Mexico|Plants described in 1992 |
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