Native & Naturalized Plants of the Carolinas & Georgia


3932

Forb (sometimes somewhat woody at base)
Perennial

Non-native: Himalayan Asia

Documented growing wild in - NC -

Rare

Look for it to be persistent and spreading from plantings, per Weakley's Flora

map
To see a detailed map, click here

 

LEAVES:
Simple
Alternate

FLOWER:
Summer/Fall
Calyx white
Bisexual
5-lobed rotate calyx
Petals absent
8 stamens
Superior ovary
Inflorescences panicle-like, mostly terminal, sometimes also axillary

FRUIT:
Achene

 

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):
Persicaria wallichii var. wallichii   FAMILY Polygonaceae

(?) LESS THAN PLANTS NATIONAL DATABASE:
Polygonum polystachyum   FAMILY Polygonaceae

LESS THAN Reynoutria polystachya

LESS THAN Aconogonon polystachyum

 

COMMON NAME:
Himalayan Knotweed, Kashmir Plume, cultivated knotweed


Click or hover over the thumbnails to see larger pictures.

image of Persicaria wallichii var. wallichii, Himalayan Knotweed, Kashmir Plume, cultivated knotweed

Ron Lance    rwl_4284

September    Haywood County    NC

Roadside

Inflorescences mostly terminal, sometimes also axillary, paniclelike, per Flora of North America.

image of Persicaria wallichii var. wallichii, Himalayan Knotweed, Kashmir Plume, cultivated knotweed

Ron Lance    rwl_4285

September    Haywood County    NC

Roadside

image of Persicaria wallichii var. wallichii, Himalayan Knotweed, Kashmir Plume, cultivated knotweed

Ron Lance    rwl_4286

September    Haywood County    NC

Roadside

image of Persicaria wallichii var. wallichii, Himalayan Knotweed, Kashmir Plume, cultivated knotweed

Ron Lance    rwl_4286b

September    Haywood County    NC

Roadside

image of Persicaria wallichii var. wallichii, Himalayan Knotweed, Kashmir Plume, cultivated knotweed

Ron Lance    rwl_4287

September    Haywood County    NC

Roadside

This particular patch is about 60' long by 20' wide.

image of Persicaria wallichii var. wallichii, Himalayan Knotweed, Kashmir Plume, cultivated knotweed

Ron Lance    rwl_4288

September    Haywood County    NC

Roadside

image of Persicaria wallichii var. wallichii, Himalayan Knotweed, Kashmir Plume, cultivated knotweed

Ron Lance    rwl_4289

September    Haywood County    NC

Roadside

Leaf blade lanceolate to elliptic-lanceolate, without dark blotch, per Flora of North America.

image of Persicaria wallichii var. wallichii, Himalayan Knotweed, Kashmir Plume, cultivated knotweed

Ron Lance    rwl_p_polystachyum

October    Haywood County    NC

This patch is about 15' wide by 60' long.