Kindalo / Legends Kindalo were a tall , tree - like species who dwelled in the underworld of the Mid Rim planet of Aleen . The Kindalo were phosphorescent beings who guarded the passages leading to the surface of Aleen , knowing the surface air was toxic to those who dwelt beneath the planet ' s surface . Around 21 BBY , a group of four Kindalo found the droids R2 - D2 and C - 3PO when they fell into the underworld , and directed them to Orphne . Biology and appearance . The Kindalo were a species of sentient plants who stood much taller than the average Human , at 3 . 1 meters . While most vegetal lifeforms grew in a permanent site , Kindalo were among those who could move about , using their lower outgrowth as legs , in the same fashion as their semi - sapient cousins the fftssfft , which gave them a laborious , somewhat jerky gait . They also used creaky shoots as arms ending in four finger - like appendages . Like some species of primates such as the Mluki or the Hanadak s , a Kindalo had arms longer than their legs . Like many other plants in the Aleen underworld , they were bio - luminescent , producing a dim white light that illuminated the underworld cavern groves they dwelled in . Their faces had stern expressions , with lipless , pouting mouths and glowing white eyes , and horn - like branches jutted from the top of their heads . They had dark skin similar to plant bark , covered with light gray phosphorescent stripes . On the whole , Kindalo appeared as towering , menacing stick figures with glowing sad eyes to unaccustomed visitors . They also possessed organs that rendered them capable of speech , and they spoke in deep echoing voices . Like all underground lifeforms on Aleen , Kindalo were extremely allergic to surface air , which they considered " foul " and was indeed poisonous to their bodies . They only survived because the very ground of Aleen kept them apart from the surface , putting the air through a natural filtering process that made it harmless to those who lived below . When the integrity of their biotope was threatened by a hole in the planet ' s ground , the Kindalo were capable of provoking groundquakes to try and seal it . Society and culture . When there was no need for movement , the Kindalo would normally remain stationary , in which case they were perfectly indistinguishable from more common non - walking trees . Since unfiltered surface air represented a biological hazard to them , the Kindalo had very few dealings with those who lived above . However , there existed a covenant between the tree - like sentients and the Aleena , a species of small , wide - mouthed reptiles who dwelled on the planet ' s surface ; their two worlds were meant to be kept separated for greater good . Although they were open to discussions , the Kindalo were still highly distrustful of strangers to their realm and did not hesitate to put the upworlders ' life in danger because of an unwitting breach of the covenant . At least some individuals were able to speak Galactic Basic Standard , the most prevalent and most used language in the galaxy . History . Early history . The tree - like Kindalo evolved in the underwold of Aleen , a rocky and temperate planet with a hollow interior located in the Mid Rim region of the galaxy . They shared their homeworld with the Aleena , with whom they had little to no interaction . While the Aleena had joined the Galactic Republic during the Great Manifest Period , which lasted from 20 , 000 to 17 , 018 BBY , the underground dwellers of Aleen remained independent of the wider galactic community , which gave them an almost mythological status . However , they did have enough contact with the outside world to learn Galactic Basic . Long before the outbreak of the Clone Wars , the Kindalo made a covenant with the Aleena , obtaining a promise that the passages between the two worlds would remain sealed , thus ensuring that surface air would not enter the subterranean caverns . The Clone Wars . At some point during the Clone Wars , around 21 BBY , an ancient seal that blocked a hole leading to the underworld was accidentally removed , which prevented the surface air from going through its natural filtering process . Several Kindalo died because of that , and , in retaliation , they caused groundquakes in hopes of sealing the breach and keep out the " foul air " from above . Due to the multiple tremors , many Aleena lost their lives too , which prompted the Galactic Republic to launch a relief mission on Aleen . The Wolfpack clone trooper squad was dispatched on the spot , along with the droid counterparts C - 3PO and R2 - D2 . Due to another quake , the two droids fell into the Aleen underworld , where they found themselves suddenly surrounded as a group of Kindalo came alive . The sentient trees were displeased that the surface dwellers had disturbed the tranquillity of their cavern groves , and they demanded them to leave . After C - 3PO managed to convince them of their good intentions , the Kindalo told the droids that , if they were to help , they had to find Orphne , a reptilian humanoid with mystical powers . Eventually , the droids managed put the unsettled seal back into place , thus ensuring the Kindalo ' s survival and bringing the seisms to an end . Behind the scenes . The Kindalo were created for " Mercy Mission " , the fifth episode of the , which aired on October 7 , 2011 . Concept art for this species indicate that they were originally called " Kindaloo . " The artists responsible for the Kindalo design advised the animators to " think about an old man " when animating them .