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Brundage, Stephanie

Hieracium venosum

Hieracium venosum L.

Rattlesnakeweed, Rattlesnake Weed

Asteraceae (Aster Family)

Synonym(s): Hieracium venosum var. nudicaule

USDA Symbol: HIVE

USDA Native Status: L48 (N), CAN (N)

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.

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Plant Characteristics

Duration: Perennial
Habit: Herb
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 Information

Bloom Color: Yellow
Bloom Time: May , Jun , Jul , Aug , Sep

Distribution

USA: 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
Canada: ON
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 Conditions

Light Requirement: Part Shade , Shade
Soil Moisture: Dry
Soil Description: Sandy

Benefit

Conspicuous Flowers: yes

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Hieracium venosum in USDA Plants
FNA: Find Hieracium venosum in the Flora of North America (if available)
Google: Search Google for Hieracium venosum

Metadata

Record Modified: 2022-12-29
Research By: TWC Staff

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