Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Caryophyllales
WEAKLEY'S FLORA (5/21/15):
Polygonum erectum
FAMILY
Polygonaceae
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Erect Knotweed at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Polygonum erectum
FAMILY
Polygonaceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 063-04-002:
Polygonum erectum
FAMILY
Polygonaceae
SYNONYMOUS WITH
-
Polygonum erectum
COMMON NAME:
Erect Knotweed
To see larger pictures, click or hover over the thumbnails.
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Keith Bradley kab_p_erectum_7938
October Richland County SC
Erect, freely branched, per Vascular Flora of the Carolinas.
)
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.
)
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.
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 (Radford, Ahles, & Bell, 1968) 063-04-002:
Polygonum erectum
FAMILY
Polygonaceae
SYNONYMOUS WITH
-
Polygonum erectum
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
Click here to see a more detailed map from University of North Carolina at Chapel Hill Herbarium,
or click here to see a map from SERNEC, a consortium of southeastern herbaria.
LEAVES:
Simple
Alternate
Petioles 3-10mm long
Margins entire
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!