Common Name: ORCHARD GRASS
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad P-Grass
Thoroughly established as an escape from cultivation (native of Eurasia): roadsides, fields, clearings, etc., sometimes spreading into natural habitats such as forests and shores. First collected in 1854 in Berrien Co.
Pollen of orchard grass is one of the most important causes of early season hay fever.
B. S. Walters
Click image to view gallery
| Alcona |
| Alger |
| Allegan |
| Alpena |
| Antrim |
| Arenac |
| Baraga |
| Barry |
| Bay |
| Benzie |
| Berrien |
| Calhoun |
| Cass |
| Charlevoix |
| Cheboygan |
| Chippewa |
| Clinton |
| Crawford |
| Delta |
| Eaton |
| Emmet |
| Genesee |
| Gogebic |
| Grand Traverse |
| Gratiot |
| Hillsdale |
| Houghton |
| Ingham |
| Ionia |
| Iosco |
| Iron |
| Isabella |
| Jackson |
| Kalamazoo |
| Kalkaska |
| Kent |
| Keweenaw |
| Lake |
| Lapeer |
| Leelanau |
| Lenawee |
| Livingston |
| Luce |
| Mackinac |
| Macomb |
| Manistee |
| Marquette |
| Mason |
| Mecosta |
| Midland |
| Missaukee |
| Monroe |
| Montcalm |
| Montmorency |
| Muskegon |
| Newaygo |
| Oakland |
| Oceana |
| Ogemaw |
| Ontonagon |
| Oscoda |
| Ottawa |
| Presque Isle |
| Roscommon |
| Saginaw |
| Sanilac |
| Schoolcraft |
| St. Clair |
| Tuscola |
| Van Buren |
| Washtenaw |
| Wayne |
| Wexford |
Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March, 29, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/2060