My Colby-Sawyer Experience

“My classes stress the interconnectedness of knowledge. A recent Fulbright fellowship provided the opportunity to work with undergraduate and graduate students at Kyoto Seika University in Japan. My teaching at Colby-Sawyer College is enhanced thanks to this experience.”
Fine and Performing Arts Professor Jon Keenan

175th Celebration

In 2012 the college celebrated 175 years as an institution of teaching and learning. Visit the 175th website for more information and to view photos of the events.

Yellow Birch Betula Alleghaniensis
Birch Betulaceae family

Leaves are egg-shaped, coming to a point at the tip, many small teeth along the margin, and 1-5" long. They are a "flimsy" sort of leaf. In the fall, these leaves turn yellow.

Flowers are in the form of flowering catkins that are narrow and approximately 1 1/8" long, and grow longer in the spring.

Fruit is also a catkin, like the flower, but this one is "fatter" and shorter (approximately 1/2" wide x 1" long), sort of like the end of your thumb.

Bark: Yellow birch bark is shiny and yellow or silver-gray, and peels in narrow strips.

Form/Habitat: Yellow birch is common in this area, and it is often found in the woods along with sugar maple, hemlock, and hobblebush. It is a fairly large tree (70 - 80') with a 2-3' diameter.

Winter identification: Yellow birch twigs are brown with tiny whitish dots that give it a "bumpy" feel. When you break the twigs or scratch the surface, they smell like wintergreen (black birch has this characteristic also). Both the twigs and buds are somewhat hairy; this is most easily detected with a hand lens.

NWI Status: FAC

Click here to return to the Angiosperm index.

Click here to return to the Virtual Herbarium Home Page.