| 词条 | Psorothamnus spinosus |
| 释义 |
|image = Psorothamnus_spinosus_form.jpg |image_caption = Mature form: 3–5 m |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Rosids |ordo = Fabales |familia = Fabaceae |genus = Psorothamnus |species = P. spinosus |binomial = Psorothamnus spinosus |binomial_authority = (A.Gray) Barneby |synonyms = Dalea spinosa |range_map = Dalea spinosa range map.jpg |range_map_caption = Natural distribution range }} Psorothamnus spinosus, known as the smokethorn, smoketree, smoke tree, smokethorn dalea, and corona de Cristo, is a perennial legume tree of the deserts in North America. DistributionIt is native to the desert washes in the Colorado Desert in Southern California, the Sonoran Desert in western Arizona, and most of eastern Baja California state including several northern Gulf of California (Sea of Cortez) islands,[1] The tree is common in Joshua Tree National Park, where it is called the smoketree. The range of Psorothamnus spinosus is centered north-south along the Lower Colorado River Valley ranging northwest into the eastern Mojave Desert, west into mostly all of the Colorado Desert-(subsection of Sonoran Desert), and east of the Colorado River in southwestern Arizona's Sonoran Desert.[2] To the west in Baja California it borders the western Gulf of California; it occurs on the islands there including Isla Ángel de la Guarda, but not Tiburon Island.[2] To the east in Sonora, the species ranges into the northwest of the great Gran Desierto de Altar, on the northern shore of the Gulf of California. In Arizona, the RangeMap also shows that the ranges center on the river courses of southwest Arizona, specifically, the Bill Williams River in the north, then the Gila River[2] in the south. The range also extends into extreme southern Nevada, mostly adjacent the Colorado River.[2] References1. ^Little, Atlas of United States Trees, Volume 3, Minor Western Hardwoods, Map 64, "Dalea spinosa" 2. ^1 2 3 Little, Map 64, "Dalea spinosa" Further reading
External links
11 : Psorothamnus|Flora of the California desert regions|Flora of the Sonoran Deserts|Trees of the Southwestern United States|Trees of Northwestern Mexico|Natural history of the Colorado Desert|Natural history of the Mojave Desert|Gran Desierto de Altar|Gila River|Islands of the Gulf of California|Yuma Desert |
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