| 词条 | Psorothamnus arborescens |
| 释义 |
|image = California indigo bush (Psorothamnus arborescens var. simplicifolius) (16768840710).jpg |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Rosids |ordo = Fabales |familia = Fabaceae |subfamilia = Faboideae |genus = Psorothamnus |species = P. arborescens |binomial = Psorothamnus arborescens |binomial_authority = (Torr. exA.Gray) Barneby |}} Psorothamnus arborescens is a species of flowering plant in the legume family known by the common name Mojave indigo bush. DistributionPsorothamnus arborescens is native to southwestern North America, where it can be found in many types of desert and dry mountainous habitats. It grows at {{convert|100|–|1900|m|ft}} in elevation.[1]It is found in the Californian Mojave Desert and Colorado Desert, south into the Sonoran Desert in the Mexican state of Sonora, east past the Sierra Nevada into the Nevada Great Basin desert, and west into the San Bernardino Mountains of Southern California.[1][2] DescriptionPsorothamnus arborescens is a shrub growing no more than {{convert|1|m|ft}} tall, its highly branching stems sometimes with thorns. The leaves are each made up of a few pairs of green linear to oval leaflets up to a centimeter in length.[1]The inflorescence is a long raceme of many flowers with reddish green calyces of sepals and bright purple pealike corollas up to a centimeter long. The fruit is a glandular legume pod up to a centimeter long containing one seed. VarietiesThe varieties of this species are generally similar in appearance but more restricted in distribution:
References1. ^1 2 Jepson: P. arborescens . accessed 12.1.2011 2. ^USDA 3. ^Jepson: P. arborescens var. arborescens 4. ^Jepson: P. arborescens var. minutifolius - (Parish) L.D. Benson External links
10 : Psorothamnus|Flora of California|Flora of Nevada|Flora of Sonora|Flora of the California desert regions|Flora of the Great Basin|Flora of the Sonoran Deserts|Natural history of the Colorado Desert|Natural history of the Mojave Desert|Natural history of the Peninsular Ranges |
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