Regularity: Regularly occurring
National NatureServe Conservation Status
Rounded National Status Rank: NNA - Not Applicable
Names and Taxonomy
Comments: Kartesz (1994 and 1999) spell the epithet 'rito', however, this appears to be in error. The International Plant Names Index has 'ritro' (web data as of May 2011), citing Species Plantarum (Linnaeus 1753). So does Flora of North America (vol. 19, 2006).
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