Barna

As Bananatides come in a wide variety of colors and genes, most of these are suggestions instead of strict requirements. If your dragon is an Undertide with tentacles tertiary that resembles a banana and wants to take over Sornieth, then they could be a Bananatide regardless of colors or primary and secondary.
If you have a bananatide with genes not listed here, please tell me so I can add them to this thread.

Why tentacles tertiary? It's the peel, which is very important.

The most common type of Bananatide, resembling a ripe banana. Some are free of blemishes, while some are speckled with brown spots. The Tertiary gene is tentacles, as with all Bananatides. Genes found often on these Bananatides include ripple/current, speckle/freckle, and basic. Most ripe Bananatides have yellow-range colors, though the primary can also be Maize or similar colors.

These Bananatides seem to be a bit unripe. Perhaps they were picked too early. Wait - do Bananatides grow on plants? I'm actually not sure. Genes unripe Bananatides often have are ripple/current and boa/saddle, though more might be discovered. The tertiary is tentacles. Unripe Bananatides often have a yellow-range or maize primary and secondary, though they can also be green-range. The tertiary color is almost always green-range.

These Bananatides appear to be very overripe, to the point where they probably wouldn't be edible if they were bananas and not dragons. Would be perfect for banana bread, though. Do Bananatides ripen over time? Is this part of their lifecycle? I'm just now realizing how little I know about bananatides. Genes often found on overripe Bananatides include ripple/current and freckle/speckle. Colors overripe Bananatides often have are brown-range.

These Bananatides are a bit off. The primary and secondary resemble any type of Bananatide, but the tentacles have colors that bananas don't. Some theories have been thrown around, but nobody knows why. Questionable Bananatides have the same color and gene guidelines as any other type of Bananatide, but the tentacles have an accent color that does not look like your typical banana.

It is theorized that there are more undiscovered types of Bananatide out there, but nobody knows yet. If you have an Undertide that resembles a banana but fits none of these, you may have found a new type of Bananatide.