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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Eryngium aquaticum

Eryngium aquaticum L.

Rattlesnakemaster, Rattlesnake-master, Snakeroot

Apiaceae (Carrot Family)

Synonym(s):

USDA Symbol: eraq

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

Scattered along the stiff, upright, branched stem, which grows 3-6 ft., are narrow, pinnately veined leaves. The individual, greenish-white flowers cluster into unique, globular heads.

 

From the Image Gallery

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Plant Characteristics

Duration: Biennial
Habit: Herb
Fruit Type: Schizocarp
Size Notes: Up to about 6 feet tall.

Bloom Information

Bloom Color: White , Green , Blue , Purple
Bloom Time: Jun , Jul , Aug , Sep , Oct , Nov

Distribution

USA: AL , DC , DE , FL , GA , MD , MS , NC , NJ , NY , PA , SC , VA
Native Distribution: Coastal areas from s.e. NJ to FL & MS
Native Habitat: Coastal bogs & marshes; wet pinelands

Growing Conditions

Light Requirement: Part Shade
Soil Moisture: Wet
Soil Description: Wet, somewhat acid, soils.

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Propagation

Commercially Avail: yes

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: OBL OBL OBL
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Plant Center at Westchester Community College, The - Valhalla, NY
Mt. Cuba Center - Hockessin, DE

Web Reference

Webref 57 - Atlas of Florida Plants (2020) Institute for Systematic Botany
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

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

Metadata

Record Modified: 2023-02-08
Research By: TWC Staff

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