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Etymology: Persicaria: peach-like, the medieval name for knotweed
Plants: erect, annual, up to 4' tall, branched forb, stems with glandular hair; top of nodes bristly; taprooted Leaves: alternate; mainly along the stem; lance-like and mostly less than 1 1/3" wide Flowers: pink to rose, 5-parted, 1/8" long, stalk jointed at the top, petals and petal-like sepals connected at the base; inflorescence 1"-2 1/3" loose, cylindrical, spike-like, sometimes drooping clusters Fruits: black, oval, smooth, shiny, dry seed Habitat: moist to wet; fields, roadsides, meadows |
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© Wisconsin State Herbarium, UW-Madison
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