Host an Event Volunteer Join Tickets

Support the plant database you love!


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.

Enter a Plant Name:
Or choose a plant family:
Acalypha rhomboidea (Common threeseed mercury)
Brundage, Stephanie

Acalypha rhomboidea

Acalypha rhomboidea Raf.

Common Threeseed Mercury, Virginia Threeseed Mercury

Euphorbiaceae (Spurge Family)

Synonym(s): Acalypha virginica var. rhomboidea


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


From the Image Gallery

11 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Root Type: Tap
Leaf Arrangement: Alternate
Leaf Shape: Lanceolate
Leaf Apex: Acute
Fruit Type: Capsule
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Green
Bloom Time: Jun , Jul , Aug , Sep , Oct , Nov
Bloom Notes: Male flowers minute with 4 sepals, golden-green. Female flowers without petals, the sepals minute and green.


USA: AL , AR , CT , DC , DE , FL , GA , IA , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , NC , ND , NE , NH , NJ , NY , OH , OK , PA , RI , SC , TN , TX , VA , VT , WI , WV
Canada: NB

Growing Conditions

Light Requirement: Sun , Part Shade
Soil Moisture: Dry , Moist

National Wetland Indicator Status

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:

Natural Biodiversity - Johnstown, PA

Additional resources

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


Record Modified: 2021-03-18
Research By: TWC Staff

Go back