Espádice

Espádice is a botanical term referring to the fleshy central spike of a flower, characteristic of plants in the family Araceae, commonly known as the arum family. This spike is typically covered in small, often inconspicuous flowers. The espádice is usually surrounded by a large, modified leaf called a spathe, which can be brightly colored or plain and often serves to attract pollinators. Together, the espádice and spathe form what is often perceived as a single, showy flower.

The flowers on the espádice are typically unisexual, with male flowers usually located towards the apex and female flowers towards the base. In some species, a sterile zone of flowers may be present between the male and female sections. The arrangement of these flowers, along with the spathe's form and function, is crucial for the pollination strategy of arum family plants. Pollination often occurs with the aid of insects, which are attracted to the espádice by visual cues, scent, or sometimes by heat generated by the inflorescence.

Examples of plants featuring an espádice include the Calla lily (Zantedeschia aethiopica), the Jack-in-the-pulpit (Arisaema triphyllum), and various species of Philodendron and Monstera. The term itself is derived from the Greek word "spadix," meaning "rod" or "date palm," referencing the shape of the floral spike. The espádice plays a vital role in the reproductive cycle of these plants, facilitating pollination and subsequent seed or fruit development.