Black crowberry + Tree fern

Empetrum nigrum is a species of crowberry known as black crowberry which is native to most northern areas of the northern hemisphere, as well as the Falkland Islands in the southern hemisphere. In gardening, it can be grown in acidic soils in shady, moist areas. It can be used for the edible berries, for a purple dye, or as a ground cover. The metabolism and photosynthetic parameters of Empretrum can be altered in winter-warming experiments

The order Cyatheales, which includes the tree ferns, is a taxonomic division of the fern class, Polypodiopsida. No clear morphological features characterize all of the Cyatheales, but DNA sequence data indicate the order is monophyletic. Some species in the Cyatheales have tree-like growth forms, but others have creeping rhizomes (stems). Some species have scales on the stems and leaves, while others have hairs. However, most plants in the Cyatheales are tree ferns and have trunk-like stems up to 20 metres (66 ft) tall. It is unclear how many times the tree form has evolved and been lost in the order.