The Sivilāo Civilizations, while far less numerous than the growing drekir tribes in both population and numbers, are far more organized thanks to over 3000 years of settling their small, dense realms compared to the recently awoken drekir.
While most drekir tribes are hunter gatherers, maybe having a small grasp of agriculture the Eldimor Sivilāo subsist almost solely on mass agriculture in the Gurjobyl of their Realms Ofuth ring city. However due to the general isolationism of the sivilāo this agricultural technology doesn't usually bleed into the surrounding area unless it is a sivilao warband seeking to capture and convert the kerrir (heretics) around them, which is a fight in which most tribals who face the sivilāo lose.
These are the 5 main domesticated plants the sivilāo cultivate along with some domesticated animals for meat. To briefly cover them:

Romātor, Pronounced "Rom-Yah-Tor" with the singular being Romāt (R is a plural suffix) is the closest to a staple crop of the sivilāo, a bundle of vines that grow together before furling into a fine wool like fluff that absorbs rainwater, atop this fluff grows the romāt fruit, a dense fruit that is almost pudding like fruit that is best baked dried into a dense, bagel texture like fruit. Mildly sweet you find this in almost every realms dish. the vines are also commonly braided into rope as the greater vines can be pounded into finer fibers as needed and the fluff atop the vine is often woven into a cotton like clothing. This plant was selective bred and cultivated for a long time, far longer than the dragonscape had existed and when the caste dragons existed in Ohndem.
Some trivia: The Romāt will absolutely just keep growing indefinitely, sprouting more vine bushels much like an Aspen tree. If you aren't on top of harvesting it it will absolutely grow out of control, it's a reason why you need year round agricultural work just to make sure 2 square miles don't turn into an unwanted infestation.

That Drālk is just a real cool guy.
Some Trivia: Drālkir often serve a multiple purposes as laborers, teachers of the drekir, and as an on call militia, this Drālk has probably killed someone... very cool?? probably not

Trovar, pronounced "Troh-var" With Trov being the singular, is a gourd known for it's absurdly thick shell and the water heavy mash within it, making it a popular traveler's source of water storage as the water heavy mash inside the gourd keeps well and can survive for months before it becomes unsafe to drink. Thus many desert focused realms and Tundra focused realms love to draw these gourds.
Some Trivia: The Trovar gourd is so hard to cut through that the ormer have a specific cleaver designed specifically for cutting open Trovar, it's basically a cleaver shaped splitting axe.

Thlamver, pronounced as it reads phonetically, with Thlam being the singular, is a mobile shrub in which the root will dig through the ground, popping up in new spaces that have better sun, better soil nutrients, etc. They are a pain to harvest as the root will try to dig underground if you try and pull it out. The most useful thing for the root is to boil it into a tea for it's energizing effects, it helps reduce muscle fatigue and keeps a dragon farming or smithing right.
Some Trivia: Thlamver has a secondary name given with hate from farmers as "Kukrenar" Which literally translates to "mud dicks" as they are unpleasant to harvest and remind drekir and drālkir of dicks, it's no coincidence that being called a Kukren is an insult about being way too stubborn or hard to work with.

Belger, also easy to say phonetically and the singulari s Belg. The seed pods of the Belger tree are very oily and fatty, and is a common lubricant in industrial work and cooking, Verdastal metal is doused in Belgoil and it is the oil of the Belger pods that is mashed and spread upon a cooking skillet. The wood is also popular to boil into a tea as a very savory and fatty tea, not a tea in how we would think of it but they love it.
Some Trivia: The wood of a Belg tree is very soft, far too soft to use in construction, it is so laden with oil that you can bend it, not easily its still pretty hard, but you can absolutely bend it.

Vilker, pronounced "Veel-ker" and Vilk is the singular. This is the primary spice of the sivilao dish, it has a notably salty and earthy flavor to it when the leaves are ground up, this is mostly thanks to the fact that the vines grow around dead bodies and rotting matter much like a fungus. Similar to romātor the actual vine is often braided into a rope for stuff andwhatnot.
Some Trivia: It is common for the Sivilāo to bury and compost the bodies of their dead and use that area specifically to grow Vilker, mostly because letting these vines anywhere near other crops will decimate those crops as the vilker will absolutely kill and feed off of dead crops.

I think I am gonna hold off on Sivilāo worldbuilding for a good bit, I have the notes but for now I want to focus more on the drekir tribes, being that those are more common, more varied, to me more interesting, and considering that those are also The Americans and center of the setting yeah, but the sivilāo are more or less their own thing that is worth diving into at some point as the religiously dogmatic, isolationist and utilitarian societies that they are.

Ok take care!