onopordum acaulon is stemless cotton thistle. synonyms: onopordum acaule, onopordum pyrenaicum, onopordum acaulon ssp. uniflorum.

abstract acaule backdrop background blue branch branches closeup cold cotton dahab design dirty dry egypt frost governorate gray grey grungy ice landscape macro material natural nature old onopordum outdoor pattern plant pyrenaicum rock rough season sinai snow south ssp stemless surface texture textured thistle white winter