>Roots
As always, we'll start with the feet. Or, well, at least the closest thing that Eden has to feet. Eden's roots branch out from their tap roots in a spread similar to, but occasionally far larger than, the crown of their tree. The main root branches are covered in scales, from under which smaller, hairy root tentacles emerge that are capable of osmotic action, mechanical suction, and reproduction.

>Trunk
Travelling up the taper of the tap root, we find the base of Eden's trunk. An unmodified tree will include vestigial structures from its Lamia component, including scales normally hidden underneath a Senketsu, "bark," and an opening that may be related to a cloaca. Inside the tree, there are boney structures similar to a snake's skeleton spread throughout the sturdier fibrous support structure, several redundant organs, and the tentacle filled remnants of a digestive system connecting the crown flower and the cloacal opening. Prime real-estate for mutagenic, alchemical, or surgical development.

>Flower
Speaking of prime real estate and the crown flower, nestled in the middle of the branches at the top of the trunk one hundred twenty meters from the tip of the tap root is a large, lily like flower with creamy white, purple dappled petals. Inside this flower are two forty meter tall, amazonian humanoids connected by interwoven tentacles where their feet might be. They have dark green, leafy limbs that can disconnect from their torso, and are capable of moving independently using their own tentacles. 

>Torso
Their torsos have soft, surprisingly warm skin, the color of an unopened bloom's sepals. The more open blooms between their legs would be white, but are tinged light purple by the highly caustic purple substance that passes for blood in this chimera. These sweet, sappy slits not only hide several tentacles, but are occasionally joined by a more phalic flower that looks something like a lily with bitter ginger flower in place of its stamen, and short root like tentacles on its underside. The masculine organ of this hermaphrodite can detach like its limbs, to be shared by either body, loaned out to a friend, or inverted to penetrate the wearer, and is normally used by anchoring the roots to the clitoris, and using the petals to hold on to the hips. Behind all this fun is a generously rounded rump, complete with an individual anus courtesy of their marionette manufacturing.
Further up these bodies is a curved waist line, complete with a belly button that suggests that they had umbilical cords at some point in their development. Opposite that is the primary Senketsu bloom on their back, sporting a smaller version of their home flower in the form of a Senketsu component interfaced directly to their spines. The petals of this flower often curve around their bodies like clothing, intercepting and consuming the generous amount of nectar their bodies, while tentacles emerge from both under and within the petals to help hold their limbs on and to interact with the world.


>Head
The leafy node at the top of their torso holds on to their neck, as their head is just as detachable as the rest of their limbs. Their neck is often wrapped in the willow like tentacles of their hair to reinforce this connection, and being extremely long, can also be seen in shibari like configurations both to keep it out of the way, and as additional support for their removable parts. Their jaw is a soft curve, and structurally similar to a Lamia's, with their plump lips hiding a set of fangs that are almost useless for the massive autotroph. The articulated canine teeth are actually resting freely inside their skull on short tentacles that can emerge from their mouths. The tongue is an interesting organ, being two long tentacles that start along the inside of the jaw and point backwards before looping back around to rest their tips where a more standard tongue might be. Like a Lamia, it can be used to generate vortices to capture stereoscopic smells. They also have a cute nose that is less useful for smelling, but also less disturbing to humans when used. Two eyes are, again, similar to a Lamia's, being slit pupilled like a serpent. They often wear a placid, sleepy expression in an affected attempt to keep smaller people calm in their presence, something they seemed practiced before their first recorded sighting on Harahel. Between a set of brows that are something between leafy and scaly, there is a rather long, spiraling horn like that of a unicorn. Knowing that they can regenerate it, they often file in a failure point to prevent it getting stuck in strange situations, then cover that by resting one of their hair tentacles on it. Speaking of hair tentacles, these are, as mentioned, similar to willow branches, but far softer and more flexible, and are capable of movement. Nearly as long as the body is tall, they have an array of relatively small white and purple flowers growing in them.

>Branches
Branching out from underneath this flower are massive tentacles that are sheathed in Senketsu bark, and from them hang several types of tentacles. 
Firstly, the bulk of those tentacles are similar to the willow like hair on their heads, simply thicker and heavier, and are used to increase the surface area available for photosynthesis and to manipulate objects that are too bulky for their more delicate limbs. 
Second are various recitational tentacles that are kept in flowering buds similar to the ones in their hair. 
Third are their Quiver Fruits, spiraling tentacles that contain specialized shafts tipped at one end with flight feathers, and at the other with broad, spaded scales. These are used as arrows when their bodies use tentacles and Senketsu fibers to form bows, and they often modify them using surgical or alchemical means, including using their own horns to make pointier arrow heads.
Lastly, the two largest, strongest branches of the tree function as wings to channel flight magic, and have pods that contain small, feathery growths they use to disperse touch spells, alchemical substances, and simple seed samples.

That's about it...
There are probably things I'm forgetting, but that's why I'm putting it in here where I can edit it.