| > Blue Vervain | ||||
Characteristics: herbaceous perennial with multiple pencil-like spikes of small blue-purple flowers Flowers: June – October Fruit: tiny nut-like seeds Growth: up to 5 feet tall Shade: full sun Habitat: fields, meadows, floodplains, roadsides Hydrology: obligate wetland, fresh water, salinity < 0.5 ppt, irregular inundation Range: throughout most of the U.S. Comments: flowers attractive to butterflies, food source for song birds and waterfowl
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