thyme-leaf sandwort (arenaria serpyllifolia). opposite leaves closeup

arenaria serpyllifolia belarus flora caryophyllaceae abaxial acuminate leaf apex black background botanical science botany closeup eglandular hair entire margin focus stacking glandular indumentum lamina lanceolate blade vein macro nature ovate petiole plants sessile stem thymeleaf sandwort thymeleaved venation virtual herbarium phyllary