Is pineapple a fruit?

I recently got myself into a huge debate(as I always do) about whether pineapple is really a fruit. I felt that there was something tricky about it because to me it seemed way to different from all other common fruit that I know. Some were saying that fruit are those that bare seeds. Others said that fruit grow only on trees, or above ground. As far as I knew pineapple plants didn’t look much like trees, and i’ve never seen any seeds in a pineaple.

So, I did a bit of research today and this is what I came up with:

Pineapple:

“Pineapple (Ananas comosus) is the common name for a tropical plant and its edible fruit, which is actually a multiple fruit consisting of coalesced berries.[...]The (Pineapple) ovaries develop into berries which coalesce into a large, compact, multiple accessory fruit.”
Source:  http://en.wikipedia.org/wiki/Pineapple

Accessory Fruit:

“An accessory fruit (sometimes called false fruit, spurious fruit, or pseudocarp) is a fruit in which some of the flesh is derived not from the ovary but from some adjacent tissue exterior to the carpel.”[...] The terms false fruit, spurious fruit, and pseudocarp are older terms for accessory fruit that have been criticized as “inapt”, and are not used by botanists today.”
Source: http://en.wikipedia.org/wiki/Accessory_fruit

Multiple Fruit:

“Multiple fruits are fruits that are formed from a cluster of flowers (called an inflorescence). Each flower in the inflorescence produces a fruit, but these mature into a single mass.”
Source:  http://en.wikipedia.org/wiki/Multiple_fruit

Pineapple plant:

“The pineapple is a herbaceous perennial which grows to 1.0 to 1.5 meters (3.3 to 4.9 ft) tall, although sometimes it can be taller.”
Source:  http://en.wikipedia.org/wiki/Pineapple

Herbaceous plant:

“A herbaceous plant (in botanical use simply herb) is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground.”
Source: http://en.wikipedia.org/wiki/Herbaceous_plant

Pollination:

“Pollination is required for seed formation, but the presence of seeds negatively affects the quality of the fruit. In Hawaii, where pineapple is cultivated on an agricultural scale, importation of hummingbirds is prohibited for this reason”.”
Source: http://en.wikipedia.org/wiki/Pineapple

Therefore, pineapple is an Accessory fruit coalesced of many berries, that grows on a herb(not a tree) and typically doesn’t have any seeds because it develops from an(artificially) unpollinated flower.

I thought I’d share this tidbit with you…

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