Northern pin oak (Quercus ellipsoidalis)
Description
“Pet poisonous” – Toxic parts: shoots, leaves Quercus ellipsoidalis, the northern pin oak or Hill's oak, is a North American species of trees native to the north-central United States and south-central Canada, primarily in the Great Lakes region and the Upper Mississippi Valley. It occurs on moist, clay soils.Although the common name suggests a resemblance to the pin oak Q. palustris, Q. ellipsoidalis has traditionally been thought to be closely related to the scarlet oak Q. coccinea, and was in fact included in that species by many botanists. Recent work suggests that there is more gene flow between Hill's oak and black oak Q. velutina, but the phylogenetic position of these species is still uncertain (Hipp and Weber 2008). The morphological similarity between Q. ellipsoidalis and Q. coccinea remains a source of confusion, especially in northwestern Indiana and southern Cook County, Illinois.Quercus ellipsoidalis is a medium-sized deciduous tree growing to 20 meters (66 feet) tall with an open, rounded crown.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Fagales
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Family: Fagaceae
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Genus: Quercus
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