speedwell, Persian (veronica speedwell)
Persian speedwell (also called veronica speedwell) is a low-growing winter annual weed found in turf, nursery crops, and waste areas. Speedwells can grow in a variety of situations, but are mostly found in shady areas with dry, sandy, or rocky soils. One of the most noticeable characteristics of this and several other speedwell species are the blue flowers. Corn and ivyleaf speedwell are also winter annuals with a similar leaf shape. Ivyleaf speedwell leaves are thicker and less serrated than those of either corn or Persian speedwell. Like the other speedwells, the leaves are both alternate (end of stem) and opposite (base of stem). In addition, the flowers of corn speedwell are borne on short stalks (less than 1 mm long), whereas those of Persian and ivyleaf speedwell are borne on stalks longer than 1 mm. The seedpods are heart-shaped for all three species.
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Persian (L), ivyleaf (M), and corn (R) speedwell
winter annual weed
alternate OR opposite
lower leaves opposite, upper leaves alternate
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