Hieracium venosum L.
Rattlesnakeweed, Rattlesnake Weed
Asteraceae (Aster Family)
Synonym(s): Hieracium venosum var. nudicaule
USDA Symbol: HIVE
Numerous yellow, dandelion-like flower heads in open clusters atop a long, usually leafless flower stalk; sap milky.
This native woodland flower is relatively widespread but most common in areas where rattlesnakes occur, hence the common name. Within the East, 11 other yellow-flowered species of Hieracium occur, nine of them native.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Size Notes: Up to about 18 inches tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: Yellow
Bloom Time: May , Jun , Jul , Aug , Sep
DistributionUSA: 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
Native Distribution: Ontario; New England south to Florida, west to Louisiana, and north to Missouri and Michigan.
Native Habitat: Dry open woods, thickets, and clearings.
Growing ConditionsLight Requirement: Part Shade , Shade
Soil Moisture: Dry
Soil Description: Sandy
BenefitConspicuous Flowers: yes
Web ReferenceWebref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Additional resourcesUSDA: Find Hieracium venosum in USDA Plants
FNA: Find Hieracium venosum in the Flora of North America (if available)
Google: Search Google for Hieracium venosum
MetadataRecord Modified: 2022-12-29
Research By: TWC Staff