| 词条 | Erigeron tenellus |
| 释义 |
|regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |tribus = Astereae |genus = Erigeron |species = E. tenellus |binomial = Erigeron tenellus |binomial_authority =DC. |synonyms_ref=[1] |synonyms=*Erigeron tenellum DC. }}Erigeron tenellus is a North American species of flowering plant in the daisy family known by the common name Río Grande fleabane.[2] It is native to the valley of the Río Grande, on both sides of the international border. It is found in the US state of Texas as well as in Nuevo León and Tamaulipas in México.[2]Erigeron tenellus grows in brushlands and in open woodlands dominated by palms. It is an annual herb up to 40 centimeters (16 inches) tall, producing a narrow taproot. The inflorescence is made up of 1-20 flower heads per stem, in a loose array. Each head contains 95–250 blue or white ray florets surrounding numerous yellow disc florets.[3] References1. ^Tropicos, Erigeron tenellus DC. 2. ^Biota of North America Program, 2014 county distribution map 3. ^1 Flora of North America, Erigeron tenellus de Candolle, 1836. Rio Grande fleabane External links
4 : Erigeron|Flora of Northeastern Mexico|Flora of Texas|Plants described in 1836 |
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