| 词条 | Helenium chihuahuense |
| 释义 |
|image = |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |tribus = Helenieae |genus = Helenium |species = H. chihuahuense |binomial = Helenium chihuahuense |binomial_authority =Bierner 1972 |synonyms_ref=[1][2] |synonyms=*Helenium chihuahuensis Bierner |}}Helenium chihuahuense is a North American perennial plant in the sunflower family. It has been found only in the state of Chihuahua in northwestern Mexico.[1][3]Helenium chihuahuense is a branching annual herb up to 78 cm (31.2 inches) tall with thick rootstocks producing only one stem with a single flower head. The leaves are long, narrow and irregularly lobed. The head is spherical or egg-shaped, with many disc flowers, each yellow with purple tips. These are surrounded by about 14-15 yellow ray flowers.[1] References1. ^1 2 [https://www.biodiversitylibrary.org/page/10008602#page/51/mode/1up Bierner, Mark William. 1972. Sida 5(1): 45-47], as Helenium chihuahuensis, includes full-page line drawing on page 46 2. ^Tropicos, Helenium chihuahuense Bierner 3. ^Turner, B. L. 2013. The comps of Mexico. A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100 External links
3 : Flora of Chihuahua (state)|Plants described in 1972|Helenium |
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