| 词条 | Chaenactis stevioides |
| 释义 |
|image = Chaenactis stevioides 7.jpg |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |tribus = Heliantheae |genus = Chaenactis |species = C. stevioides |binomial = Chaenactis stevioides |binomial_authority = Hook. & Arn. |}} Chaenactis stevioides, with the common names Esteve's pincushion and desert pincushion, is a species of flowering plant in the daisy family. DistributionEsteve's pincushion is native to California and the Great Basin of the United States and the southwestern deserts extending into Mexico, where it grows in open arid and semiarid habitat. It is "among the most abundant spring wildflowers in the higher Mojave Desert and southern Great Basin."[1] It is also found in the southern California chaparral and woodlands habitats. DescriptionChaenactis stevioides is an annual herb growing one or more erect stems up to about {{convert|45|cm|in}} tall. The stems are hairy with cobwebby fibers which thin with age. The leaves reach {{convert|2|-|4|cm|in}} in length and are divided into many subdivided lobes. The inflorescence bears several flower heads on a tall peduncle. Each head is lined with rigid, hairy and glandular phyllaries and filled with white, pink, or pale yellow flowers. The flowers around the edges are larger and open-faced, and the ones in the center of the head are smaller and somewhat tubular in shape. The fruit is an achene with a pappus of scales. References1. ^Flora of North America External links
10 : Chaenactis|Flora of the Western United States|Flora of the California desert regions|Flora of the Great Basin|Flora of the Sonoran Deserts|Flora of California|Natural history of the Colorado Desert|Natural history of the Mojave Desert|Natural history of the Peninsular Ranges|Natural history of the Transverse Ranges |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。