| 词条 | Agoseris grandiflora |
| 释义 |
|name = Agoseris grandiflora |image = Agoserisgrandiflora.jpg |image_caption = Agoseris grandiflora var. grandiflora |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |subfamilia = Cichorioideae |tribus = Cichorieae |genus = Agoseris |species = A. grandiflora |binomial = Agoseris grandiflora |binomial_authority = (Nutt.) Greene |synonyms_ref=[1] |synonyms ={{collapsible list|bullets = true |title=Synonymy |Agoseris cinerea Greene |Agoseris intermedia Greene |Agoseris marshallii (Greene) Kuntze |Agoseris marshallii (Greene) Greene |Agoseris obtusifolia (Suksd.) Rydb. |Agoseris plebeia (Greene) Greene |Microrhynchus grandiflorus (Nutt.) Torr. & A.Gray |Stylopappus grandiflorus Nutt. |Troximon grandiflorum (Nutt.) A.Gray |Troximon marshallii Greene |Troximon plebeium Greene |}}}}Agoseris grandiflora is a North American species of flowering plants in the daisy family known by the common names California dandelion, bigflower agoseris, and grassland agoseris.[2] The plant is native to western North America from British Columbia to California to Utah, where it grows in many habitat types.[2][3] DescriptionAgoseris grandiflora is a perennial herb producing a basal patch of leaves of various shapes reaching maximum lengths of 50 centimeters. There is usually no stem, but there is sometimes a rudimentary one.[2]The upright part of the plant is actually the peduncle of the inflorescence, which can approach a meter in height. It is coated in soft white hairs.[2] The flower head at the top is up to 4 centimeters wide and lined with reddish or purplish green phyllaries with curling tips. The head is ligulate, containing many yellow ray florets but no disc florets.[2] The fruit is an achene which may be nearly 3 centimeters long, including a long beak and long white pappus.[4] Varieties
References1. ^The Plant List Agoseris grandiflora (Nutt.) Greene 2. ^Biota of North America Program 2014 county distribution map 3. ^Calflora taxon report, University of California, Agoseris grandiflora (Nutt.) E. Greene California Dandelion, Giant mountain dandelion, bigflower agoseris, large flowered agoseris 4. ^1 2 3 4 Flora of North America, Agoseris grandiflora External links
15 : Agoseris|Flora of the Northwestern United States|Flora of British Columbia|Flora of California|Flora of Nevada|Flora of Utah|Natural history of the California chaparral and woodlands|Natural history of the California Coast Ranges|Natural history of the Peninsular Ranges|Natural history of the San Francisco Bay Area|Natural history of the Santa Monica Mountains|Natural history of the Transverse Ranges|Plants described in 1841|Taxa named by Edward Lee Greene|Taxa named by Thomas Nuttall |
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