| 词条 | Haploesthes greggii |
| 释义 |
| image = | image_caption = | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Eudicots | unranked_ordo = Asterids | ordo = Asterales | familia = Asteraceae | genus = Haploesthes | species = H. greggii | binomial = Haploesthes greggii | binomial_authority = A.Gray 1849 | synonyms_ref = [1] | synonyms = *Haploësthes greggii A.Gray, alternate spelling
}}Haploesthes greggii, common name false broomweed,[2] is a North American species of flowering plants in the daisy family. It grows in northeastern Mexico (Chihuahua, Coahuila and Nuevo León) and in the south-central and southwestern United States (Texas, Oklahoma, New Mexico; also historical reports of the species in Colorado and Kansas but very likely extirpated there).[3][3][4] The genus name is sometimes spelled Haploësthes, with two dots over the first e to indicate that the o and the e are to be pronounced in separate syllables. This is optional; either spelling is equally acceptable.[3][5] Haploesthes greggii is a perennial herb or subshrub up to {{convert|80|cm|in|abbr=on}} tall, somewhat succulent. Leaves are very narrow, sometimes thread-like. The plant produces numerous yellow flower heads in flat-topped arrays. Each head has 3–6 ray flowers and 18-100 disc flowers.[3]
References1. ^1 The Plant List, Haploesthes greggii var. texana (J.M.Coult.) I.M.Johnst. 2. ^{{PLANTS|id=HAGR4|taxon=Haploesthes greggii|accessdate=20 July 2015}} 3. ^Biota of North America Program 2014 county distribution map 4. ^SEINet, Southwestern Biodiversity, Arizona chapter Haploesthes greggii Gray photos, description, distribution map 5. ^International Code of Nomenclature for algae, fungi, and plants (Melbourne Code) section 60.6 6. ^1 2 3 Flora of North America, Haploësthes A. Gray, 1849. External links
9 : Tageteae|Flora of Chihuahua (state)|Flora of Coahuila|Flora of New Mexico|Flora of Nuevo León|Flora of Oklahoma|Flora of Texas|Plants described in 1849|Taxa named by Asa Gray |
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