What physical feature allows for the easy identification of Oak Leaf lettuce?

Answer

Deeply lobed leaves mirroring an oak tree

Oak Leaf lettuce possesses a defining morphological characteristic that aids in its straightforward identification among other leafy greens. This characteristic is derived from its leaf structure; the leaves are deeply lobed in a manner that closely resembles the appearance of the leaves found on an actual oak tree. This visual similarity is the primary trait used to distinguish this variety, which is available in both green and striking red hues.

What physical feature allows for the easy identification of Oak Leaf lettuce?
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