| bark mulch | 0.92 | At the high end, the money is being spread thick as bark mulch. | ||
| bark chip | 0.33 | Therefore, porous mediums such as bark chips, tree fern fiber and stones generally are preferred over soil. | ||
| bark canoe | 0.26 | They crossed rivers and lakes in birch bark canoes, propelled by wooden oars. | ||
| bark cloth | 0.26 | These early garments were made of native tapa, or bark cloth. |