marsh mallow (althaea officinalis). infructescence closeup

althaea officinalis malvaceae alternate caducous calyx epicalyx fruit herbaceous hirsute indehiscent indumentum infructescence leaf marsh mallow marshmallow mericarp peduncle phyllotaxy pubescent schizocarp sepal stellate hair stipule belarus flora black background botanical science botany closeup focus stacking macro nature plants virtual herbarium