picnomon flowering plants thistle pink flower

crop soil gardening desert flowering plant ornamental texture pattern background brown stone dead ground sands gravels road caused grass yards evergreen perennial grows wild tropical semi-tropical climates indoor grown foliage thistle weed sunburnt flower dry sunburned-plant dead-flower dry-summers tap root grow horizontally pink thistles sunburned stem graphic spine picnomon plants tribe daisy family flowers mammillaria cactus mexican pincushion globose spherical vase dried growing roads slows absorbs cleans water runoff roadsides reduce erosion flooding result supplies control thorns