OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Amaranthus polygonoides   FAMILY Amaranthaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Amaranthus polygonoides   FAMILY Amaranthaceae

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

Amaranthus polygonoides

SYNONYMOUS WITH Flora of North America

Amaranthus polygonoides

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Amaranthus polygonoides

 

COMMON NAME:
Tropical Amaranth, Smartweed Amaranth


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

image of Amaranthus polygonoides, Tropical Amaranth, Smartweed Amaranth

Keith Bradley    kab_a_polygonoides_4571

September    Miami-Dade County    FL

The inflorescences are axillary, congested clusters, per Flora of North America.

image of Amaranthus polygonoides, Tropical Amaranth, Smartweed Amaranth

Keith Bradley    kab_a_polygonoides_4573

September    Miami-Dade County    FL

Leaf blade ovate, obovate-rhombic to narrowly ovate, sometimes lanceolate, per Flora of North America.

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Amaranthus polygonoides   FAMILY Amaranthaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Amaranthus polygonoides   FAMILY Amaranthaceae

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

SYNONYMOUS WITH Flora of North America
Amaranthus polygonoides

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Amaranthus polygonoides

 

Find by SCIENTIFIC NAME:

3853

Forb
Annual
Monoecious

Habitat: Disturbed areas, per Weakley's Flora

Non-native: tropical America

Waif(s)

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

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

IS THE PLANT "ARMED"?
Stems not armed

LEAVES:
Simple
Alternate
Petioles roughly equal length of blade
Margins entire

FLOWER:
Spring/Summer/Fall
4-5 sepals in staminate flowers, 5 in pistillate flowers
Petals absent
Unisexual

Inflorescences axillary, congested clusters

FRUIT:
Spring/Summer/Fall
Utricle

 

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



 


Find by SCIENTIFIC NAME: