OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Malvids: Myrtales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Trapa natans   FAMILY Lythraceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Trapa natans   FAMILY Trapaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Trapa natans

INCLUDED WITHIN Flora of China

Trapa natans

SYNONYMOUS WITH Flora of North America

Trapa natans

 

COMMON NAME:
European Water-chestnut, Water-caltrop, Four-spined Water-chestnut


         To see larger pictures, click or hover over the thumbnails.

image of Trapa natans, European Water-chestnut, Water-caltrop, Four-spined Water-chestnut

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_trna_001_lvd

        

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Trapa natans   FAMILY Lythraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Trapa natans   FAMILY Trapaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Trapa natans

INCLUDED WITHIN Flora of China
Trapa natans

SYNONYMOUS WITH Flora of North America
Trapa natans

 

Find by SCIENTIFIC NAME:

3797

Emergent aquatic (rooted); Forb
Perennial

Habitat: Farm ponds and other stagnant or slow-moving water, per Weakley's Flora

Non-native: Eurasia & Africa

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.


INVASIVE

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

 

IS THE PLANT "ARMED"?
Fruit armed with 2-4 prominent spines

LEAVES:
Submerged leaves finely divided, feather-like; floating leaves simple
Submerged leaves alternate; floating leaves in a rosette at water's surface
Petioles of floating leaves 2-6' long

FLOWER:
Summer/Fall
White (inconspicuous)
4 sepals
4 petals

Flowers borne in the center of the rosette of floating leaves

FRUIT:
Nut-like

 

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



 


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