marsh labrador tea (rhododendron tomentosum). wintering twig closeup

ericaceae ledum palustre rhododendron tomentosum blade bud scale floral flower gland glandular hirsute lamina leaf scar lepidote marcescent rustcolored senescent terminal vascular bundle traces woolly indumentum marsh labrador tea northern wild rosemary tomentosum wintering twig closeup virtual herbarium belarus flora: focus-stacked closeups cultivated plants including flowers leaves fruits intended illustrations botanical manuals