The Yonic Larch is the predominant forest tree of the Yon Islands, forming extensive overstory stands mixed with spruce, fir, ash, birch, aspen, and maple. It is a medium-size to large deciduous coniferous tree reaching 20 to 50 m tall, with a trunk up to 1 m in diameter. The bark is tight and flaky, pink, but under flaking bark it can appear reddish. The leaves are light blue-green needle borne in clusters of 10 to 20, each 2 to 3 cm long, which turn bright yellow before they fall in the autumn to leave the pale pinkish-brown shoots bare until the next spring. The wood is tough, durable, rot-resistant, and flexible in thin strips, so it is a favorite for making snowshoes, boats, posts, poles, and for fuel. , 
Paperberry is a deciduous tree reaching 10 to 15 m high, which grows along the temperate eastern shore of Borea as far north as the Yon Islands. The leaves are variable in shape (even on the same branch), unlobed ovate cordate to deeply lobed, with lobed leaves more frequent on fast-growing young plants. The male (staminate) flowers are produced in an oblong inflorescence, and the female (pistillate) flowers in a globular inflorescence. In summer, the pistillate flower matures into a red to orange, sweet, juicy fruit 3–4 centimetres diameter, which is an important food for humans and animals. The fruit is edible and very sweet. The tender leaves and twigs can be used to feed browsing antelope. In addition to cultivation for fruit, paperberry is also an important bast fiber crop. The bark is composed of very strong fibres, and can be used for making high-quality paper and bark cloth. , .