Native Plants
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Prenanthes altissima
Prenanthes altissima L.
Tall Rattlesnakeroot, Tall White Lettuce
Asteraceae (Aster Family)
Synonym(s): Nabalus altissimus, Prenanthes altissima var. cinnamomea
USDA Symbol: PRAL3
USDA Native Status: L48 (N), CAN (N)
Tall White Lettuce (Prenanthes altissima) has only 5 main bracts surrounding the flower heads.
Plant Characteristics
Duration: PerennialHabit: Herb
Size Notes: Up to about 8 feet 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 , GreenBloom Time: Aug , Sep , Oct , Nov
Distribution
USA: AL , AR , CT , DE , GA , IL , IN , KY , LA , MA , MD , ME , MI , MO , MS , NC , NH , NJ , NY , OH , OK , PA , RI , SC , TN , TX , VA , VT , WVCanada: MB , NB , NS , ON , PE , QC
Benefit
Conspicuous Flowers: yesNational Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | UPL | FACU | UPL | FACU | FACU |
Web Reference
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Prenanthes altissima in USDA PlantsFNA: Find Prenanthes altissima in the Flora of North America (if available)
Google: Search Google for Prenanthes altissima
Metadata
Record Modified: 2023-01-06Research By: TWC Staff