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January 3, 2022

Distinguishing Hemlock from Yew

 

Rosie Lerner-retired, Extension Consumer Horticulture Specialist, Purdue University

It is easy to confuse Hemlock (Tsuga spp.) and Yew (Taxus spp.) unless you can see the overall plant habit or have them both side by side.  Further confusing them is that both species may be pruned into hedges or other shapes that obscure the natural plant habits.  

 

Hemlock has short needles, 1/4 - 3/4" long, green above and distinctly whitish silver below due to prominent white stomatal bands.  Cones are 1/2 - 1" long, ovoid, and pendulous.  

 Click image to enlarge
yew and hemlock View of above side. Top: Yew. Bottom: Hemlock Photo Credit: Rosie Lerner, HLA
yew and hemlock View of Underside. Top: Yew. Bottom: Hemlock Photo Credit: Rosie Lerner, HLA

Yew has a slightly longer and wider needle -about 1/2 - 1 1/4" long, dark green above and light green below, overall coarser texture compared to hemlock. Cones look like berries,  the brown seeds are covered by a fleshy red aril (seedcoat).  

 Click image to enlarge
hemlock cones Hemlock Cones Photo Credit: Purdue Arboretum
Yew Cones Yew Cones Photo Credit: Purdue Arboretum

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