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DESCRIPTION:
Redstems, which include purple ammannia and other
species, are aquatic, broadleaf annuals that reproduce by seed and emerge through the water surface. In rice, they thrive
where the stand is thin and do especially well during warm years. Seedlings have
triangular, dark green seed leaves. The first pair of true leaves is
opposite and oval or triangular. Mature plant may be 5 to 30 inches (12.5
- 75 cm) tall. The four-angled stems can branch extensively. Long,
narrow, opposite leaves are stalkless and are opposite to one another along the stem. Small, four petalled, bright
rosy-red colored flowers grow in groups of three to four at the junction where the leaf stalks meet the stem.
Broadleaf ID illustration.
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