| 词条 | Carex praegracilis |
| 释义 |
| image = Carexpraegracilis1.jpg | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Monocots | unranked_ordo = Commelinids | ordo = Poales | familia = Cyperaceae | genus = Carex | species = C. praegracilis | binomial = Carex praegracilis | binomial_authority = W.Boott | synonyms = Carex camporum }} Carex praegracilis is a species of sedge known by the common names clustered field sedge, field sedge, and expressway sedge. DistributionThis sedge is native to much of North America, from Alaska across southern Canada and throughout the continental United States, from California to Maine, except for the southeastern region. DescriptionCarex praegracilis grows in wet and seasonally wet environments in a number of habitats, including meadows and wetlands. It tolerates disturbed habitat such as roadsides and thrives in alkaline substrates. Carex praegracilis produces sharply triangular stems up to 80 or 100 centimeters tall from a network of thin, coarse rhizomes. The inflorescence is a dense, somewhat cylindrical array of flower spikes up to 4 or 5 centimeters long. The plant is often dioecious, with an individual bearing male or female flowers in its inflorescences, but not both. The range of this sedge is spreading, especially along roadsides where the application of road salt has apparently encouraged its growth.[1][2] CultivationCarex praegracilis is cultivated in the specialty horticulture trade and available as a (grasslike) ornamental grass for: a traditional garden and natural landscape lawn substitute and 'meadow-like' plantings; native plant, drought tolerant water conserving, and habitat gardens; and various types of municipal, commercial, and agency sustainable landscape and restoration projects. References1. ^Flora of North America 2. ^Illinois Wildflowers {{webarchive |url=https://web.archive.org/web/20090601035216/http://www.illinoiswildflowers.info/grasses/plants/xpway_sedge.htm |date=June 1, 2009 }} External links{{commons category|Carex praegracilis}}
10 : Carex|Flora of the Northern United States|Flora of the Northwestern United States|Flora of the Southwestern United States|Flora of California|Flora of the Sierra Nevada (U.S.)|Plants described in 1884|Garden plants of North America|Drought-tolerant plants|Groundcovers |
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