Beauv.
Identity
Unique IDELEMENT_GLOBAL.2.156224
Element CodePMPOA23010
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderCyperales
FamilyPoaceae
GenusDiarrhena
SynonymsDiarrhena americana var. americana
Other Common NamesAmerican beakgrain (EN)
Concept ReferenceKartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic CommentsAs treated here, following Kartesz (1994 checklist), excludes Diarrhena obovata, sometimes treated as D. americana var. obovata. Reports of "D. americana" from west of the Mississippi River are presumably all D. ovata.
Conservation Status
Review Date2008-02-15
Change Date2008-02-15
Edition Date1997-02-26
Edition AuthorsMorse, Larry E. (1995), rev. K. Gravuer (2008)
Rank ReasonsModerately large range centered on southern Appalachians. This species appears to be relatively frequent and secure in the center of its range, including KY, IN, OH, WV, and TN. It occurs in a more scattered/infrequent manner in a number of surrounding states, in many of which it is considered state-rare. Preferred habitat is rich moist woods, where it is locally threatened by land-use conversion, habitat fragmentation, and forest management practices.
Range Extent CommentsApparently most frequent in center of range, including KY, IN, OH, WV, and TN. Also occurs in a more scattered/infrequent manner to the south in northern AL and GA, to the west in AR, OK, MO, and IL, and to the east in PA, MD, VA, and NC; considered rare by many heritage programs in these peripheral states.
Threat Impact CommentsHighly threatened by land-use conversion, habitat fragmentation, and forest management practices (Southern Appalachian Species Viability Project 2002).