| 词条 | Orobanche ludoviciana |
| 释义 |
|image = Orobanche ludoviciana.jpg |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Lamiales |familia = Orobanchaceae |genus = Orobanche |species = O. ludoviciana |binomial = Orobanche ludoviciana |binomial_authority = Nutt. |}} Orobanche ludoviciana (common name Louisiana broomrape[1] or prairie broom-rape) is part of the family Orobanchaceae. This parasitic plant is not specific, but especially favors Artemisia and Asteraceae. They grow from 1-3 dm often without branches. Leaves are scales and numerous. The inflorescences are many-flowered spikes that occupy a half to a third of the shoot. Flowers sessile or with small up to 15mm pedicels for the lower flowers. Calyx subtended by 1 or 2 bracts, which are bilabiate. Corolla is 1.5-2.5 cm and often a violet-like color. 2n=24, 48, 72, 96. Inhabits sandy soil. Found in Illinois and Indiana, as well as Saskatchewan to Texas, and west to California and northern Mexico. Found from June through August.[2] Enlisted as endangered in Wisconsin and threatened in Illinois and Indiana. References1. ^{{PLANTS|id=ORLU|taxon=Orobanche ludoviciana|accessdate=26 April 2016}} {{Taxonbar|from=Q3356567}}2. ^{{Cite book|title=Manual of Vascular Plants of Northeastern United States and Adjacent Canada|last=Gleason & Cronquist|first=|publisher=The New York Botanical Garden|year=1991|isbn=|location=|pages=}} 1 : Orobanche |
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