Home Asteraceae Hieracium

Hieracium venosum L.

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

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.

A. A. Reznicek

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

Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March, 17, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/377