| 词条 | Gamochaeta sphacelata |
| 释义 |
| regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Eudicots | unranked_ordo = Asterids | ordo = Asterales | familia = Asteraceae | tribus = Gnaphalieae | genus = Gamochaeta | species = G. sphacelata | binomial = Gamochaeta sphacelata | binomial_authority = (Kunth) Cabrera 1961 | synonyms_ref = [1] | synonyms =
}}Gamochaeta sphacelata, called Owl's crown,[2] is a species of flowering plant in the sunflower family. It is widespread across South America, Central America, and Mexico with the distribution just barely crossing the Río Grande into western Texas.[2][3]Gamochaeta sphacelata is an annual herb up to {{convert|50|cm|in|abbr=on}} tall. Leaves are long and narrow, up to {{convert|4|cm|in|abbr=on}} long. The plant forms many small flower heads in elongated arrays. Each head contains 3–5 purple disc flowers but no ray flowers.[4] References1. ^Tropicos, Gnaphalium sphacelatum Kunth {{Taxonbar|from=Q15598905}}{{gnaphalieae-stub}}2. ^Guy L. Nesom 2004. New distribution records for Gamochaeta (Asteraceae: Gnaphalieae) in the United States. Sida 21(2): 1175–1185. 3. ^Biota of North America Program 2014 county distribution map 4. ^1 Flora of North America, Gamochaeta sphacelata (Kunth) Cabrera, 1961. Owl’s crown 7 : Gnaphalieae|Flora of Central America|Flora of South America|Flora of Mexico|Flora of Texas|Plants described in 1818|Taxa named by Carl Sigismund Kunth |
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