Native & Naturalized Plants of the Carolinas & Georgia


4090

Forb
Annual

Native to the Carolinas
Documented growing wild in - NC SC

Rare

Look for it in bottomland forests, streambanks, disturbed areas, open places, per Weakley's Flora

map
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LEAVES:
Simple
Alternate
Petioles 3-10mm long

FLOWER:
Summer/Fall
Greenish with a narrow whitish margin
5-parted calyx
Petals absent
Superior ovary

FRUIT:
Summer/Fall
Dark brown
Nutlet

 

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



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

WEAKLEY'S FLORA (5/21/15):
Polygonum erectum   FAMILY Polygonaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Polygonum erectum   FAMILY Polygonaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 063-04-002:
Polygonum erectum   FAMILY Polygonaceae

SYNONYMOUS WITH Polygonum erectum

 

COMMON NAME:
Erect Knotweed


Click or hover over the thumbnails to see larger pictures.

image of Polygonum erectum

Keith Bradley    kab_p_erectum_7938

October    Richland County    SC

Erect, freely branched, per Vascular Flora of the Carolinas.

image of Polygonum erectum

Keith Bradley    kab_p_erectum_7938b

October    Richland County    SC

Sepals green with a narrow yellowish or whitish margin, per Vascular Flora of the Carolinas.

image of Polygonum erectum

Keith Bradley    kab_p_erectum_7938c

October    Richland County    SC

Leaves elliptic to widely lanceolate. Ocreae whitish, membranous, to 1cm long, per Vascular Flora of the Carolinas.