Hieracium venosum L.
Common Name: RATTLESNAKE-WEED, VEINED HAWKWEED
Coefficient of Conservatism: 6
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Hieracium venosum A. A. Reznicek

Sandy plains and banks, especially jack pine, oak, and aspen savannas and forests; does well after fire.

Rarely the base of the stem has some scattered long ± straight hairs, though these are less dense than in H. gronovii and H. longipilum. Occasionally a plant will lack the conspicuous and distinctive reddish purple borders on the leaf veins, and a very few plants have the bristly hairs around the margin of the leaves sparse or lacking. The heads are fewer-flowered (not over 25) than in many species. The inflorescence at maturity is very broadly paniculate, with ± divaricate branching. See also comments under H. gronovii, which may have basal leaves of similar shape (although usually not all leaves are basal).

A collection from Schoolcraft County may be a hybrid with Hieracium scabrum.

Locations

Alcona County
Allegan County
Alpena County
Benzie County
Charlevoix County
Cheboygan County
Chippewa County
Crawford County
Genesee County
Gladwin County
Grand Traverse County
Hillsdale County
Huron County
Ingham County
Ionia County
Iosco County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Lake County
Leelanau County
Lenawee County
Livingston County
Mackinac County
    Only on Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Mason County
Mecosta County
Missaukee County
Montcalm County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Oscoda County
Otsego County
Presque Isle County
Roscommon County
St. Clair County
Washtenaw County
Wayne County
Wexford County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 17, 2017. http://www.michiganflora.net/species.aspx?id=377.