sorrel (rumex acetosa). cauline leaf closeup

polygonaceae rumex acetosa abaxial alternate basal lobe cauline leaf entire margin fimbriate glabrous hastate laciniate lamina blade lanceolate ocrea petiole sagittate base stem venation sorrel common garden narrowleaved dock spinach acetosa closeup virtual herbarium belarus flora: focus-stacked closeups wild cultivated plants including flowers leaves fruits intended illustrations botanical manuals