New York City Gardener Practice Exam

A monocotyledon is defined by having which feature?

One seed leaf Two seed leaves No seed leaves Multiple seed leaves

Correct Answer:

One seed leaf

Explanation:

Monocotyledons are classified by having a single seed leaf, called a cotyledon, in the seed. This single cotyledon is the first leaf that appears as the seed germinates, and it distinguishes monocots from dicotyledons, which have two seed leaves. Beyond this defining feature, monocots often show parallel leaf venation and vascular bundles scattered in the stem, but those traits are additional characteristics, not the defining criterion. Examples of monocots include grasses, corn, and lilies. So the defining feature is one seed leaf.

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