Betula kenaica Betula kenaica Betula kenaica, or Kenai birch, is a species of birch that can be found in Alaska and northwestern North America at above sea level. It grows up to tall, with reddish-brown bark that may become pink or grayish-white. The leaf blades are ovate and grow in 2-6 pairs which are (sometimes up to ) long and wide. The leaf margins are cuneated and serrated with rounded base and acute apex. The flowers bloom in late spring while fruits fall in autumn. The buds and twigs of the plant are used as a stew flavor while its inner bark
Citrus gummy bark viroid Citrus gummy bark viroid The citrus gummy bark viroid (abbreviated CGBVd) is a sub-species of the hop stunt viroid, and thus is a member of the genus Hostuviroid. As the name suggests, the citrus gummy bark viroid causes problems in the bark of the sweet orange tree. Scrapping the bark exposes localized spots or a line of reddish-brown, gum-impregnated tissue around the scion circumference especially visible near the bud union. The discoloration and gumming may extend above the bud union to the main branches of the sweet orange while in severe infection dark streaks of gum-impregnated tissue may also be