Elaeagnus umbellata Thunb.
Common Name: AUTUMN-OLIVE
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad Shrub

Elaeagnus umbellata B. S. Walters

An Asian species, planted for ornament or wildlife habitat and too freely escaping to roadsides, forests, fields, filled land, gravel pits, and almost anywhere, even though not collected in the state until 1939 (Kalamazoo Co.). Thoroughly established as a terrible weed in much of southern Michigan, and still rapidly spreading in both dry and wet habitats.

The fruit is red and juicy when ripe. The leaves are green or nearly so above, especially when mature, and usually more broadly elliptic to ovate than in E. angustifolia.

Elaeagnus commutata Rydb. is native in northeastern North America, south to Lake Superior, but has not yet been found in Michigan. It differs from E. umbellata in having dry mealy fruit, and leaves ± silvery above even when mature; it also has a shorter floral tube, but the rust-brown scales mixed with silvery ones and the habitat in natural communities should distinguish it from E. angustifolia.

Locations

Alcona County
Allegan County
Alpena County
Antrim County
Barry County
Benzie County
Berrien County
Calhoun County
Clare County
Crawford County
Emmet County
Hillsdale County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Lake County
Lapeer County
Leelanau County
Lenawee County
Livingston County
Manistee County
Mason County
Mecosta County
Midland County
Monroe County
Montcalm County
Newaygo County
Oakland County
Oceana County
Ontonagon County
Ottawa County
Saginaw County
Shiawassee County
Tuscola County
Van Buren County
Washtenaw County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 17, 2017. http://michiganflora.net/species.aspx?id=1193.