Solidago flexicaulis (broad-leaved goldenrod, zigzag goldenrod) is a North American species herbaceous perennial plant in the family sunflower family. It is native to the eastern and central parts of the United States and Canada, from Nova Scotia west to Ontario and the Dakotas, and south as far as Alabama and Louisiana. It grows in a variety of habitats including mesic upland forests, well drained floodplain forests, seepage swamp hummocks, and rocky woodlands.
The plant is called the "zigzag goldenrod" because the thin, wiry stem zigs and zags back and forth, changing direction at each node (leaf attachment point). The plant sometimes as many as 250 small yellow flower heads, some at the end of the stem, others in the axils of the leaves. The leaves are very broad, almost round, but with an elongated tip at the end and large teeth along the edges.
- The Plant List, Solidago flexicaulis L.
- Biota of North America Program 2014 county distribution map
- Digital Atlas of the Virginia Flora
- Flora of North America: Solidago flexicaulis Linnaeus, 1753. Zig-zag or broadleaved goldenrod , verge d’or à tige zigzaguante
- Blanchan, Neltje (2005). Wild Flowers Worth Knowing. Project Gutenberg Literary Archive Foundation.
- Missouri Botanical Garden Gardening Help: Solidago flexicaulis
- United States Department of Agriculture Plants Profile: Solidago flexicaulis
- Wisconsin Botanical Information System: Solidago flexicaulis
- photo of herbarium specimen at Missouri Botanical Garden, collected in Missouri in 1989
- photograph showing zigzag stem
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