no 1 senwase stan

But i think, from how we see Ibara, a large part of it is going to be filtered through religious experiences+delusions. It already seems like how she talks and understands thing is subconsciously put through this filter (i dont think shes calling shishida "apocalypse beast" out of spite or to be inflammatory-- there is religious theory that the beast of gevaudan may have been god-sent, albeit this theory is rare and far from widely accepted. Ibara doesnt seem to follow any specific doctrine, though, and i really think parts of it are just kinda her brain drawing connections in line with her deeply personal beliefs as opposed to dogma. To her it may just be that she believes theyre saying the same thing in essence, while he does not)

But on the topic of sensory experiences specifically, I would also say that Ibara is experiencing exponentially higher levels of sensory input than most people, so i cant blame her for being a space cadet. And while the fainting is an anime-only gag presumably to show her delicate sensibilities or whatever i personally am choosing to interpret it as an incredibly reasonable consequence of her brain hitting the limit. Like cut the cameras im OUT!!! It's documented frequently in the history of religious ecstasy and other spiritual experiences, so adding an assload of input i can imagine only heightens your chance.

And so onto your question about how that manifests-- its hard to say! But i have a few ideas.

Firstly, i think we should address what the plant is perceiving, and how. In a base function, we can say that they respond to stimuli in certain forms (light, sound, smell, balance, touch, etc) which loosely correlates with our own senses. They differ in the organs used, though, but Ibara having a centralized animal brain both simplifies and complicates it.

Plants don't "see" pictures-- they have sensory cells dedicated to seeing both light and different wavelengths of light (which helps control their circadian cycle and even flowing schedule! Even a small disruption of flashing a certain color light during the night can allow farmers to delay or change when certain plants flower), but these arent rods and cones connected to an optical nerve connected to a brain. But at the same time, they... ARE connected to a brain.

I think for Ibara, plant sight is like a murky, back-of the mind addition to her normal range of vision. It's not a picture the same way her Eyes work, but she knows intuitively theres light, shadow, and colors around her, and can focus in on it a little more if she tries. Details and motion that doesn't block light wouldnt be part of it-- the plant can only see what blocks light covering it or reflects light onto it. Ever-periphery flashes of shadowy shapes and colors. (and conversely: i think the prayer pose, with eyes closed and hands clasped makes it easier to focus on the information filtering through)

sound is also different-- while the studies about plant growth and music are bunk, plants do react to sound. the mechanics of it are still heavily under-explored, but we know they do, just so long as its sound that may be relevant to a plant, like running water or insects chewing. I don't think Ibara could do what Hawks does-- where he can focus in on sounds through his wings and hear conversations. The vines aren't a dedicated sensory organ, they just communicate signals back that are of relevance. She may KNOW there's sound somewhere, but it's background noise until it's something that triggers a response. The question is really what would be deemed important enough to do so.

See, the thing with plants is that they don't have emotions, or even a centralized brain, as we've established. Animals can and do. humans especially. Things deemed important by a person can be important for a variety of reasons, beyond just survival. While Ibara uses the vines as an extension of her limbs, it doesn't change the built in systems of stimuli response the plant has, but the plant isn't a brain in the sense that it will decide anything. So the question of What Ibara Hears from the plant is an interesting one. Personally, I don't think she hears the sounds "as is". Ibara doesn't HEAR insects chewing, because the cells are communicating a stimulus and response, so it would be an interpretation of the response. Sort of a plato's cave issue-- I think ibara may say she "hears omens of danger" or "tidings of great joy", but it's not like she's being told a Coherent Thought By The Vines. it's sound of water = good = we are safe and can find safety + an avidly catholic teenager = the angels bring tidings of joy. it's thing she "hears" but doesnt hear because its never actually touching her own aural organs or nerves. She may not be able to pinpoint what the sound itself is, just what it evokes or what her brain fills the gap in as, like talking.

Taste and smell are both something plants do, but defined slightly differently, as we associate these things with specific nerves in the human body that plants Dont Have. to define it the way my book does, we're going to say "taste is the reception of chemical signals through touch" and "smell is the reception of chemical signals dispersed through the air". and plants do taste, and taste one another-- many parasitic plants show preference for certain species, like the dodder vine. other vines, especially those that climb, will avoid climbing their own species because they know that the support is unstable. this is something they figure out by the chemicals they release onto their surface. This is something that would really be tightened up by ibara having an actual real world plant on her head but trust me trying to find anything that matches is a mess. more on that in a bit. but we know, in theory, she can "taste" other plants, and maybe even other type of similar compounds through these vines, which i think would then also manifest in at least a vague idea of a taste in her mouth-- once again, platos cave of sensation, although honestly its probably a bit more in line with what the actual thing would taste like. (tomatoes, for example). this taste may also correlate with a signal that associates emotionally, but ill touch on that in the pain part of this.

Smell is similar- once again, just detected through the air instead of touch. (The smell of cut grass? An airborne danger signal. Ibara probably can't stand being around freshly-cut lawns, it must feel like a giant panic attack. How this would manifest? Not sure! The smell of blood? As a sound instead? It's hard to say what could compare to the scope of fear that kind of flood would cause). I won't go into depth since it's the same as above, but I would also like to add carbon dioxide as a mention. Plants can detect levels of CO2 (and it can decide how they photosynthesize!) in the air, and I think because for Ibara, photosynthesis has to be accelerated (due to the faster growth and usage of energy being more akin to that of an animal instead of a plant) and she and the plant share an exchange of signals and nutrients.

I'm going to diverge briefly into the realm of digestion and nutrition. Firstly because I love it. Secondly because it will circle back to our carbon dioxide talk.

Ibara's vines are, as we see, leafless. This is quite relevant. Leaves, as most people know, are responsible for the majority of photosynthesis. While chlorophyll in any parts of the plant can photosynthesize, leaves are by far the most effective way thanks to the broad surface area and certain specializations. Leafless plants (especially in the case of vines) tend to be parasitic. Plants that evolve photosynthetically-inefficient leaves tend to be carnivorous, which I would like to explore a little.

A plant is defined as carnivorous if, typically, it shows a form majorly inclined towards having prey-trapping mechanisms, and receives a substantial amount of nutrition from doing so. They tend to grow in areas that have high sunlight and water levels, but with incredibly nutritionally deficient soil. Nutrients like nitrogen, phosphorous, and proteins, which are found in meat (bugs included)

Now, Ibara's vines have visible roots, so I think it's safe to assume the root system is within her body, and goes deep below the surface. Water, nutrients, and neurological signals all need to be shared; and so I think her entire body is connected to this root system. Ergo, all the nutrition the plant gets that isn't photosynthesized comes from what Ibara digests-- which is also why I don't personally subscribe to the vegan or vegetarian Ibara headcanon-- because nitrogen and phosphorous are INTEGRAL to stem growth, and baby, she's all stem. In fact, I think she probably loves meat-- second only to bread, which provides long-term energy in the form of complex sugars. I personally think Ibara would dislike sweets in the traditional sense of candy and desserts outside of winter-induced cravings from a drop in photosynthesis, but that would be because the sugars her vines produce for her already maintain a decent level of homeostasis, so it would cause her blood sugar to spike and make her feel ill. Conversely, bread breaks down and is stored much more long term, so it would both benefit her and the plant, which is inefficient at photosynthesis compared to a plant of the same size with leaves, and would need a boost given how much energy it uses to grow, detach, and move.

I know this girl can put away a MEALLLL after training. Yaomomo style.

I think you could argue Ibara (and her quirk) qualifies as a carnivorous plant. Her vines lack leaves and instead have developed extensive thorns (which can be a type of modified stem-- its complicated and varies plant to plant), and we never see them branch off of each other, so they may not even be capable of developing stems. She also doesn't appear to have any flowering mechanism (nor does she need one!), although I will say I'm a sucker for the idea of Ibara having psuedo-blossoms that aren't functional flowers, but rather an indicator of health. Either way, the heavy focus on the vines for strength, complex movement, and grasping through pointed extrusions makes me think you could convincingly argue that they are the "trapping mechanism", which is a requirement for carnivorous plants.

So, once again, we've established that there's a complex nutrient exchange both from Ibara to the vines, but from the vines to Ibara. And because of this, I think there's an added level of complexity to her digestive system-- specifically regarding the stomach's direct connection to the brain. Just like her own nutritional needs can trigger certain responses like in any person, but the plant probably has the same access to these hormone signals. Things like craving sugar and being irritable in winter because of the inability to produce her own as much, but also conversely, I think the plant can trigger a digestive response to prepare for the influx of sugar being photosynthesized. A "heads up, we're about to start sending this your way" to help maintain proper levels.

So, back to carbon dioxide finally. When plants detect higher carbon dioxide levels in the air, they may photosynthesize more. This may result, in my opinion, to "phantom smells" and a trigger to the digestive system, resembling how our own mouth waters when we smell food. Whether it's just an ambiguous food smell or one specifically (maybe bread?) to Ibara I'm not sure, but what I'm saying is that if Bakugou's explosions over the course of an hour can produce about the same amount of carbon dioxide as an entire person throughout one day, she probably thinks he smells fucking delicious and for no reason why. It's funny to me.

Ok! On to touch. I think it's obvious that Ibara's vines react to touch and that's transmitted to her, given how she knows that she's found someone and is pulling them out in JTA. Plants definitely can feel touch, and respond, but I'd like to note that plants can't feel pain. They don't have the ability to feel pain. They can react to adverse touch, certainly-- for example, grass releasing their smell when cut, but they don't feel pain. It's solely for survival, and feeling pain isn't really important for a relatively stationary being. Nor do they really have the factor of emotional association with pain that typically is bundled together. But in the case of Ibara; who, once again, has the burden of the complex mammalian brain... maybe she does feel pain, even if it's not "real"! It likely has to do with whether she has the expectation of and emotional association of fear/pain/etc, so simply cutting away the vines aren't likely to make her hurt. But I don't think phantom pain is out of the question, especially for someone already as high-strung as Ibara and who has so many wires crossing at so many times because of the nuance of the signals transmitted from cell to cell.

And related to touch... a fascinating and storied study in plants includes gravitropism and proprioception, or-- balance and how they know what's up and what's down! People have incredibly complex proprioception systems (most people know about the inner ear, but it goes far deeper than that!), and plants, too, make use of this ability. In fact, it's integral for plant growth.

Plants have two main mechanisms for gravity sensing. The root caps, and then in the stems, the endodermis (which is also responsible for osmosis in cells, sorta) both have genes that develop statoliths, similar to the otoliths we have in the inner ear. These statoliths tell the plant which way gravity is pulling. The root caps make roots grow down, the endodermis makes the shoots grow up.

I think for Ibara, her vines have become an extension of her own balance and ability to know where she is in space. Losing all of them suddenly would result in something similar to a damaged ACL-- having to readjust and being wobbly for a while. Not only that, but I think quirks that impact someone's sense of balance would seriously waste Ibara. While Ibara does move her vines in more ways than up and down, the ability to tell what's what still relies on the individual cells in the stems and roots. While Ibara would still be able to produce the growth hormone and self-amputating mechanisms that detach her vines (i have to look more into this, honestly-- autotomy has only been recorded in one type of plant, and even with abscission ibara's vines dont follow typical patterns. smh my head.), there would be little if any control over the movement, especially if the balance reduction hits the endodermis in more ways than one, because that would impair the hydrolic movement that causes movement in plants.... Either way, Ibara's quirk would be rendered functionally useless. Deidoro Sakaki has this one. And in my opinion, with Uraraka's quirk, they would grow, but wouldn't show proper gravitropic bending, and so may also be impaired in their ability to perform actions.

And I think a complete removal of Ibara's vines would honestly feel like... overwhelmingly suffocating? Imagine having so much of the senses you're used to having cut off, it's probably incredibly jarring and upsetting. I don't think she would prefer it to the every day life she lives, because it seems like she's generally not that impeded by her own world view and strict standards, even if others oppose it (OCD queen lets go #1).