Betula alleghaniensis colored, peeling bark of yellow birch. For young trees where bark has not yet developed, yellow birch can also be identified by its hairy buds and stems; sweet birch has hairless buds. The yellow birch was first described by François André Michaux in 1812 as "Betula lutea". In 1904, Nathaniel Lord Britton described what he considered to be a new closely related species of birch as "Betula alleghaniensis", differing from "B. lutea" by its shorter fruiting scales and mostly cordate (vs. rarely cordate) leaf bases. After comparing the descriptions and illustrations of "B. lutea" and "B. alleghaniensis", Merritt Fernald found
Eucalyptus sessilis Ranges and Walter James Range in Western Australia. It is also scattered through the Finke River basin, Great Sandy Desert and Burt Plains. Eucalyptus sessilis Eucalyptus sessilis, commonly known as Finke River mallee or river mallee, is a mallee tree that is native to the Northern Territory and central areas along the border of Western Australia. The tree has a spreading and straggly habit, is typically in height, and occurs on stony slopes. Its bark is smooth and peels away in strips when shed. The flowering period is between April to July, the stamens that appear from the capsule are