4140

Forb
Annual
Monoecious

Non-native: Mediterranean Europe

Documented growing wild in - - -

Waif(s)

Look for it in disturbed areas, per Weakley's Flora

To see a detailed map, click here

INVASIVE

This plant is causing problems in natural areas outside its native range, according to authorities such as:

• Forest Health Assessment & Applied Sciences Team: New Invaders of the Northeast
• Forest Health Assessment & Applied Sciences Team: New Invaders of the Southeast
• SC List of Regulated Pest Plant Species, 2017
• USDA Federal Noxious Weed List, 093014

 

 

IS THE PLANT "ARMED"?
Outer tepals bear spines

LEAVES:
Simple
Mostly basal
Petioles 2-29cm long

FLOWER:
Winter/Spring/Summer/Fall
Greenish
Unisexual
6 tepals, the outer three bearing spines

FRUIT:
Winter/Spring/Summer/Fall
Achene

 

TO LEARN MORE about this plant, look it up in a good book!

• New Invaders of the Northeast and Northcentral US p025
• New Invaders of the Southeast p029

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Caryophyllales

WEAKLEY'S FLORA (5/21/15):
Emex spinosa   FAMILY Polygonaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Emex spinosa   FAMILY Polygonaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933)
Emex spinosa