<i>Plantago major</i>. "...a flower cluster or form of inflorescence in which the flowers are sessile (or apparently so) along an elongated, unbranched common axis, as in the well-known mullen and plantain." &mdash;Whitney, 1889
<p>Illustration of a spike from a Broadleaf Plantain.

Broadleaf Plantain - Spike

Plantago major. "...a flower cluster or form of inflorescence in which the flowers are sessile (or apparently…