Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Plant secondary metabolism wikipedia , lookup
Plant defense against herbivory wikipedia , lookup
Plant breeding wikipedia , lookup
Ornamental bulbous plant wikipedia , lookup
Plant physiology wikipedia , lookup
Plant reproduction wikipedia , lookup
Plant ecology wikipedia , lookup
Plant evolutionary developmental biology wikipedia , lookup
Plant morphology wikipedia , lookup
Plant Identification Guide Paper birch Betula papyrifera Also Known As: Paperbark birch, silver birch, canoe birch Plant Family: Birch (Betulaceae) Did you know? “The sap and inner bark is used as emergency food. White birch can be tapped in the spring to obtain sap from which beer, syrup, wine or vinegar is made. The inner bark can be dried and ground into a meal and used as a thickener in soups or added to flour used in making bread. A tea is made from the root bark and young leaves of white birch. It was also used by native Americans to make canoes, buckets, and baskets. …North American Indian tribes used white birch to treat skin problems of various rashes; skin sores, and burns.” Prepared By Lincoln M. Moore @ USDA NRCS National Plant Data Center Identification Hints Plant Description Birches have flowers in small clusters (catkins) which hang from the branches and mature before leaves emerge. Paper birch has white, peeling bark but some western varieties can have brown or coppery bark. In the East, several birches could be confused with paper birch. Gray birch (B. populifolia) has whitish bark but does not peel and is generally a smaller tree. Leaves are longer with narrower points at the tips and solitary male catkins (vs. 3 or more in paper birch). A medium-sized tree that grows up to 70 ft (21 m) tall, often with several trunks. Paper birch is often confused with ornamental birches, in particular the weeping birch (B. pendula). Weeping birch has drooping twigs and branches and diamond shaped black patches on the bark. Downy birch (B. pubsescens) can have white bark, but does not peel. It has fine, singletoothed leaf margins (paper birch as two sizes of teeth). Bark: Thin, smooth and dark on young stems, becoming bright creamy white with a peeling, papery texture. Comments Leaves: Oval or triangular-shaped, greener on the topside and paler on the underside. Flowers: In long, yellowish clumps called catkins. Flowers bloom in midspring. Fruits: Paper birch fruits are tiny winged-nutlets about 1.5 mm long by 0.8 mm wide. Habitat: Grows best in well-drained soils with cold soil temperatures and ample moisture. This species grows best in full sunlight and is very shade intolerant. Information sources: USDA Plants Database (plants.usda.gov/java/ profile?symbol=BEPA); Virginia Tech Forestry Department Dendrology Database (www.cnr.vt.edu/DENDRO/DENDROLOGY/syllabus/ factsheet.cfm?ID=14); USFS FEIS Database; Photo courtesy of Paul Alaback budburst.org | CITIZEN SCIENCE Timing is everything! © 2013 NEON, Inc. All rights reserved.