Wildflowers of the United States

Home Journal Family Index - All States Photo Albums News About Privacy

Rattlesnake Weed, Rattlesnake Hawkweed, Veiny Hawkweed - Hieracium venosum


Family: Asteraceae Aster family Genus Common Name: Hawkweed Native Status: Native
Hieracium venosum - Rattlesnake Weed, Rattlesnake Hawkweed, Veiny Hawkweed. is listed as Endangered in Maine. Officially listed as a noxious weed in Washington state, even though the USDA doesn't list it as being found in Washington State. The fact that it is listed as a noxious weed in that state implies that it is indeed found there, and it is listed for neighboring British Columbia, so I'm including it in Washington's list here on USWildflowers.com. I suspect that with this being a disjunct location Hieracium venosum is an eastern species that the British Columbia and Washington populations are not native.

Found in:
AL, CT, DC, DE, FL, GA, IN, KY, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WV

Distribution of Hieracium venosum in the United States and Canada:
USDA Plants Distribution Map temporarily unavailable.
Blue=Native; Grey=Introduced

Map from USDA Plants Database:
USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 31 Oct 2014). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Search Our Database of Species
Enter any portion of the Scientific
or Common Name (or both)

Scientific name:
Common name:

Example: Enter "lob" in the common name field and you'll get all our species that have "lobelia" in the common name, as well as "sharp-lobed hepatica".

Do a general Google search of the entire site:




Follow on Twitter
Follow USWildflowers on Twitter




Site: White County, GA Date: 2011-May-02Photographer: Gerald C. Williamson
Nikon D7000
The yellow blossoms consist entirely of ray florets, and are around inch across. They are at the end of several long, rambling, wiry stems.
Hieracium venosum

Site: White County, Ga Date: 2009-May-29Photographer: Gerald C Williamson
The plant grows up to about 30 inches high. It may have up to around 20 blossoms.
Click on the photo for a larger image
Hieracium venosum

Site: Towns County, Ga Date: 2010-April-30Photographer: Gerald C Williamson
The rosette of basal leaves are distinctly red-veined. They may have a hairy fringe but are generally smooth. There may be a few hairs on the stem near the basal leaves, but the stem is otherwise smooth.
Click on the photo for a larger image
Hieracium venosum

Site: Lake Nottely, GA Date: 2009-May-29Photographer: Gerald C Williamson
The stems are generally leafless, perhaps with a few bract-like leaves at the branches.
Click on the photo for a larger image
Hieracium venosum

References used for identification and information:

Looking for Wildflowers for a specific state? Check here:



All content except USDA Plants Database map Copyright Gerald C. Williamson 2014
Photographs Copyrighted by the named photographer