smartweed, Pennsylvania

COMMON NAME: Smartweed, Pennsylvania
SCIENTIFIC NAME: Polygonum pensylvanicum
FAMILY: Polygonaceae
LIFECYCLE: Annual
FEATURES: Leaves lanceolate to slightly ovate often with a prominent dark watermark. Ocrea present with
no fringe of hairs. Inflorescence a spike at apex of stem, pink.
DESCRIPTION: Ocrea inclosing stem at leaf nodes is a prominent characteristic of Polygonums. Common in
areas with greater soil moisture.

Broad View Stem, leaves, and flowers

Broad View
Stem, leaves, and flowers

Flower / Seed Head Inflorescence is a spike

Flower / Seed Head
Inflorescence is a spike

Leaf Leaf often with a darkened watermark.

Leaf
Leaf often with a darkened watermark.