green field speedwell (veronica agrestis). habit

plantaginaceae scrophulariaceae veronica agrestis androecium anther anthesis calyx corolla crenate decumbent filament flower gland glandular hair gynoecium habit lamina blade leaf vein lower leaves ovate pedicel petal petiolate petiole pistil pollen procumbent sepal solitary stamen stem stigma style upper alternate venation green field speedwell agrestis virtual herbarium belarus flora: focus-stacked closeups wild cultivated plants including flowers fruits intended illustrations botanical manuals