Arkansas Heritage Program
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Calamagrostis porteri ssp. insperata - Ofer hollow reed grass


Family: Poaceae

Status:    Global Rank: G4T3
State Rank: SH

Habitat: Semi-open oak hickory woods on acid sandstone soils of north and east facing slopes, mesic to dry-mesic

Flowering Date: July - September

Fruiting Date: August - November

Causes for Concern: Known in Arkansas from a single historic collection from Rich Mountain in Polk County. Now known from several sites in southern Missouri. Rarely flowers or fruits.

Global Range: Its range is restricted to the central United States, including southern Ohio, Illinois, and Indiana, Kentucky, and the Ozark Plateau region of Missouri and Arkansas.


Arkansas Natural Heritage Commission

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