During the mid to late summer, fields can filled with these tall flowering perennials that had always called thistles (Disteln, a much shorter cousin it turns out) but are properly classified under Linnean taxonomy Dipsacus fullonum (teasel or by the title common name in German) from the Greek δισᴨα for thirst for the cup-like catchments that form where the leaves merge with the stem that collects water. These little obstacles may have evolved to prevent bugs from climbing up to the inflorescence (blooming like a pineapple, where they differ from thistles) of pink to purple flowers. With a wide range from Africa to Eurasia, the dried heads are an important over-wintering food resource for birds and the plant formerly played a role in the textile industry (see also) as a natural comb for teasing, raising the nap on fabrics, particularly wool—a process called fulling.