WHERE’S WILDLIFE • WILDFLOWER FIELD GUIDE

Rough Hawkweed

Hieracium scabrum

Pronounced (approximate): hy-er-AY-see-um SKAY-brum

Small yellow heads cluster at the top of a leafy stem. Broad oval leaves and stems carry spreading hairs.

Rough Hawkweed (Hieracium scabrum): field photograph. Tap the photo to open the gallery.

NATIVE • NORTH AMERICA

At a glance

Family Asteraceae
Life cycle Perennial
Blooms July – September
Height 1 to 3 feet
Habitat part shade, sun; dry sandy soil; open woods and woodland edges

Common names: Rough Hawkweed · Sticky Hawkweed

Bloom timing varies with latitude, weather and local conditions.

Sightings map

Explore reported observations. Sightings are not a complete range map.

How to recognize it

Key identification clues

  • Small yellow heads cluster at the top of a leafy stem.
  • Broad oval leaves and stems carry spreading hairs.
  • Upper flower stalks bear glandular hairs.

Where and when to look

part shade, sun; dry sandy soil; open woods and woodland edges. Flowering season: July – September.

Compare similar plants

Compare the leafy stem with introduced hawkweeds whose leaves are mainly basal. Rough Hawkweed and Sticky Hawkweed are common names for this species.

A closer look

Flower details

Small yellow heads cluster at the top of a leafy stem.

Leaves & stems

Broad oval leaves and stems carry spreading hairs.

Whole plant & habitat

Upper flower stalks bear glandular hairs. Pair close views with a photograph of the whole plant.

Field photographs

5 field photographs. Select a photograph to enlarge it; use Load more photos to see the rest.

Range & sightings

Native to North America.

Reported U.S. distribution
AR, CT, DC, DE, GA, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, VA, VT, WI, WV

Includes native and introduced state records where listed; a state record does not imply occurrence in every county.

Observation maps show submitted records, not every place the plant occurs. Follow local access rules when visiting a site.

Keep learning

Practice recognizing Rough Hawkweed in the flower quiz, or compare it with other plants in the guide.

Sources & further reading

Field photographs: Where’s Wildlife.

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