El inglés es el idioma de control de esta página. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.
Al hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. NC State Extension no garantiza la exactitud del texto traducido. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.
English is the controlling language of this page. To the extent there is any conflict between the English text and the translation, English controls.
Clicking on the translation link activates a free translation service to convert the page to Spanish. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning. NC State Extension does not guarantee the accuracy of the translated text. Please note that some applications and/or services may not function as expected when translated.Collapse ▲
Corn speedwell (Veronica arvensis) is a small, weak, low-growing winter annual that thrives in thin open turf and often appears in solid stands. The lower leaves of corn speedwell are rounded and toothed, while the upper leaves are smaller and more pointed. Like the other speedwells, the leaves are both alternate (end of stem) and opposite (base of stem). Corn speedwell is similar in many respects to Persian and ivyleaf speedwell. However, it has the smallest leaves of the three species. Ivyleaf speedwell leaves are thicker and less serrated than those of either corn or Persian speedwell. The entire corn speedwell plant is covered with soft, fine hairs. The flowers are small, bright blue with white throats, and nearly stalkless, whereas those of Persian and ivyleaf speedwell have stalks that are longer than 1 mm. The seedpods are heart-shaped in all three species.
Winter annual broadleaf weeds germinate in the fall or winter and grow during any warm weather, which may occur in the winter, but otherwise remain somewhat dormant during the winter. They resume growth and produce seed in the spring and die as temperatures increase in late spring and early summer. They quickly invade thin turf areas especially where there is good soil moisture. Shade may also encourage growth. A dense, vigorous turf is the best way to reduce the encroachment of this weed. First, select adapted turfgrass cultivars for your area and then properly fertilize, mow, and water to encourage dense growth. Corn speedwell is similar in appearance to Persian and ivyleaf speedwell.
- GROWTH SEASON / LIFE CYCLE
- winter annual weed
- GROWTH HABIT
- LEAFLET NUMBER
- LEAF MARGIN
- rounded teeth
- LEAF HAIRS
- upper/lower surface
- LEAF / LEAFLET SHAPE
- lower leaves egg-shaped or round, upper leaves linear
- LEAF WIDTH
- 1⁄2 - 1 inch
- LEAF VENATION
- LEAF ARRANGEMENT
- lower leaves opposite, upper leaves alternate
- ROOT TYPE
- FLOWER COLOR
- blue / purple