![]() ![]() The autumn crocus ( Colchicum autumnale) – not to be confused with the spring-blooming crocus plants that are part of the Iridaceae family – contain a toxic alkaloid called colchicine, which is poisonous to dogs. Some areas of the country have particularly poisonous species of snakes, so make a point of learning what snakes are in your area, where they like to hide, and how to recognize them. The mild weather of early fall means snakes are on the move. Keep an eye out as you are walking with your dog, scanning for places where snakes could be hiding. Leaf piles can also provide a refuge for our next fall danger: snakes. Check out our past posts on ticks and fleas for more information on how to keep your dog safe from these miniscule menaces. Make sure your dog is up to date on all of his tick and flea medications, and check him for pests after each time he goes outside. Ticks, mites and other parasites can be lurking among the leaves, and spread a host of illnesses. While leaf piles are fun to play in for people and pets alike, they can also house hidden dangers. If a horse consumes red maple leaves in large amounts, it can cause severe hemolytic anemia, resulting in weakness, pale gums, an elevated heart rate, and shock. Horse owners should also be aware that red maple leaves are toxic to horses (although not to dogs and cats). In addition to oaks, the leaves and bark of black locust trees, found in the southeastern U.S., can cause nausea, weakness, and depression in dogs if consumed. Not only are they a choking hazard, but oak acorns and young oak leaves also contain a chemical called gallotannin, which can cause severe gastrointestinal distress in dogs, including vomiting, lethargy, diarrhea, and damage to the liver and kidneys. Acorns are a choking and intestinal blockage hazard for dogs, so dog owners should make a habit of cleaning up fallen acorns or fencing off areas in the yard where they can be found. While the trees in your yard are pretty and offer great shade, their leaves and acorns may be dangerous for your dog if consumed. However, with the abundance of activities and agriculture, there are also some dangers to be aware of as you and your furry friend enjoy the season. (And then jumping into them, of course!) There’s no doubt that fall can be a fun and exciting time for everyone, including your dog. Galls, which are spread by insects, can form on the leaves but represent no harm to this oak.Fall is here! It’s the season of apple and pumpkin picking, Halloween costumes, and of raking leaves into giant piles. In the Willamette Valley of Oregon it often grows in pure stands. This species prefers full sun and does best where annual precipitation exceeds 30” per year. When cut down the wood from this oak is used for furniture and flooring. The mature bark is brownish gray and shallowly fissured in a checker-like pattern. Gray squirrels, deer and livestock eat acorns and the leaves of young shoots and sprouts. The lower 1/3 of the acorn is encased in a shallow cup. Their fall color ranges from saddle brown to tinted gold occasionally dull red.Īcorns (fruit) are ovate and smooth and approximately 1” long. During the summer the leaves are dark green above and pale beneath. Leaves are pinnately lobed with 5 to 9 irregular rounded lobes. They are simple, 4”-6” long and are evenly and deeply lobed with rounded leaf tips. The leaves of Oregon White Oak are arranged in an alternate fashion. ![]() Young trees often have shrubby appearance. The limbs are often very crooked especially if the tree is grown out in the open. Oregon White Oak can easily grow to a height of 90’ and a width of over 125’ forming a broad, rounded crown with a rugged appearance. In its northern range it is often known as Gary Oak. Large mature specimens are wide spreading and very stout in appearance. ![]() Description Oregon White Oak is best known as a stately deciduous tree that grows from British Columbia south to Los Angeles. ![]()
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