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Prunus serrulata "Kwanzan" leaf

Near the "Fine Arts Center" bus stop where I get off near my office, there are two sakura trees that bloom later than the tree in my yard. I looked over the leaves and selected one (Fig. 1) to photograph and describe today.

Prunus serrulata "Kwanzan"Prunus serrulata "Kwanzan"

Figure 1. Prunus serrulata leaf. Upper side of leaf is on left.

I identified two differences between the Prunus serrulata "Kwanzan" leaf and the P. sargentii leaf I collected on July 5, 2017. The P. serrulata is flatter (less twisted) and the marginal teeth are all the same size and have a fine, drawn-out point with a black tip that the P. sargentii teeth lacked.

In other respects, the leaves are indistinguishable. The color, proportions, venation, and glands on the stem are roughly the same.

The surface of the leaf has some roughly linear marks. At first, I thought these might be leaf miners which look somewhat similar, but holding the leaf up to the light, I did not see any damage or change to the internal structures of the leaf. Other leaves had similar marks.

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