| 词条 | Erigeron aphanactis |
| 释义 |
|image = Erigeron aphanactis 2.jpg |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |tribus = Astereae |genus = Erigeron |species = E. aphanactis |binomial = Erigeron aphanactis |binomial_authority = (A.Gray) Greene |synonyms_ref=[1] |synonyms=
}}Erigeron aphanactis is a species of flowering plant in the daisy family (Asteraceae) known by the common name rayless daisy,[2]{{rp|121}} or rayless shaggy fleabane.[3] This wildflower is native to the western United States, primarily the Great Basin and Colorado Plateau regions (eastern California, Nevada, Utah, western Colorado, northeastern Arizona, northwestern New Mexico, southern Idaho, eastern Oregon).[3][4]Erigeron aphanactis grows in sage, scrub, and open woodland habitat. It is a short, clumping perennial with stem and foliage covered in stiff hairs and resin glands. Most of the narrow, fuzzy leaves are near the base of the plant. The erect stems hold inflorescences of one or more flat, buttonlike flower heads, which contain numerous golden yellow disc florets but no ray florets. Each head is about 10 mm (0.4 inches) wide.[5]
References1. ^1 The Plant List, Erigeron aphanactis (A.Gray) Greene 2. ^Great Basin Wildflowers, Laird R. Blackwell, 2006, Morris Book Publishing LLC., {{ISBN|0-7627-3805-7}} 3. ^Biota of North America Program 2014 county distribution map 4. ^1 Calflora taxon report, University of California, Erigeron aphanactis (A. Gray) E. Greene, rayless shaggy fleabane 5. ^1 Flora of North America, Erigeron aphanactis (A. Gray) Greene, Fl. Francisc. 389. 1897. External links
3 : Erigeron|Flora of the Western United States|Plants described in 1865 |
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