golden burdock seed heads stand in sharp contrast against a clear blue sky - spiky texture

arctium lappa autumn colors season autumnal biennial species blue sky botanical closeup interest brown tones burdock plant life crisp weather conditions dried plants dry flora aesthetic ecological elements nature environmental themes foraging golden hour lighting herbalism subjects medicinal natural beauty detail outdoor perennial spikes survival texture seasonal change seed dispersal mechanisms heads pods seeds spiky textured background thistlelike appearance undisturbed habitat wild wildflower wildlife food source