Nabalus autumnalis (Walter) Weakley - Slender Rattlesnake-root


 

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Nabalus autumnalis - (image 1 of 5)

 

Taxonomy

Family: Asteraceae

 

Synonymous with Prenanthes autumnalis Walter

Habitat

Sandy, usually moist pine barrens.

Associates

 

Distribution

On the coastal plain from NJ to northern FL.

Morphology

Herbaceous perennial; stems 40-140 cm, glabrous throughout; basal and lowermost cauline leaves elongate, 7-35 cm long and 1-12 cm wide, few-toothed to pinnately lobed, the lobes often rather narrow and distant; cauline leaves much reduced upward, often becoming linear and entire; inflorescence very narrow and elongate; heads nodding; involucres 10-13 mm, usually purplish, without long hairs; principle bracts mostly 8, the reduced outer ones often passing into those of the slender peduncle; flowers (8-)10-11(-13), pink or pale lavender; pappus stramineous.

Notes

Flowers August to October

Wetland indicator: FAC

Occurs in the same habitats as Gentiana autumnalis and blooms around the same time.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
 


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 Michael Hough © 2018