NameThatPlant.net: Amaranthus spinosus

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

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

Dig deeper at SERNEC, a consortium of southeastern herbaria.

Check out EDDMapS.org to see where this has been reported.

Read more about Spiny Amaranth at Vascular Plants of North Carolina.

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Amaranthus spinosus FAMILY Amaranthaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 066-03-006:

Amaranthus spinosus FAMILY Amaranthaceae

COMMON NAME:
Spiny Amaranth

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

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Amaranthus spinosus FAMILY Amaranthaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 066-03-006:
Amaranthus spinosus FAMILY Amaranthaceae

3582

Forb
Annual
Monoecious

Habitat: Fields, gardens, roadsides, barnyards, pastures, per Weakley's Flora

Non-native: tropical America

Common

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

IS THE PLANT "ARMED"?
Stems armed with paired stipular nodal spines

LEAVES:
Simple
Alternate
Margins entire

FLOWER:
Summer/Fall
Green to silvery-green
1-5 sepals (or sepals absent) subtended by 3 bracts
Petals absent
Unisexual

Flowers in terminal thyrses

FRUIT:
Summer/Fall
Utricle

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

If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".

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