Tag Archives: Cornus alternifolia

Word of the Week: Palmate

Two common forms of venation that are the starting point for many plant identification systems are palmate and pinnate. A third venation pattern is fan-shaped, as in gingko trees… A fourth form, arcuate, has a strong midrib, but also curved secondary veins in a more heart-shaped arrangement. The parallel venation of a fifth form appears in most monocot plants. Continue reading

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TREE: Cornus alternifolia (Pagoda Dogwood)

Tried and True Native Plants of the Mid-Atlantic: Cornus alternifolia (Pagoda Dogwood)

Layers of horizontal branches tapering in size toward the top give this highly prized ornamental tree its common name.  This native of the understory of woods in the eastern United States is a favorite tree of ecologist and entomologist Doug Tallamy because of its value to pollinators and birds. Continue reading

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Word of the Week: Phyllotaxis

The three major patterns of phyllotaxis are alternate, opposite, and whorled, as shown in the illustration below. How leaves are arranged on the stem (axis) is one of the tools for classifying and identifying plants. Continue reading

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