The flowerheads of American feverfew grow in flat-topped or slightly rounded, fuzzy white clusters about ¼ inch wide. The petal-like ray florets are few, tiny, and inconspicuous. It blooms May–September.
American germander flowers are lavender or pink and densely spaced. The corolla has an unusual configuration; it seems to have no upper lip, since those 2 lobes are pointed upward like horns, while the lower lip is much larger and more complicated, with 2 rounded side lobes and a large, cupped, bottom lobe; 4 stamens protrude noticeably, with reddish-brown anthers.
American germander is a colony-forming perennial with a 4-sided, hairy stem that is rarely branched. It occurs statewide in fields, prairies, low woods, streamsides, roadsides, railroads, and other disturbed sites, usually in moist soil.
American lotus is an aquatic plant that can cover large areas. The leaves are blue green, circular, without a V-shaped notch, extremely variable in size, to 2 feet wide, and can shed water. The stem is attached in the center. They are normally held above the water level on long stems, though young leaves float.
American water willow is common on gravel bars and other stream banks throughout much of Missouri. The dense colonies of emergent stems have leaves like a willow’s, but the two-lipped flowers resemble little orchids.
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