|Other Names||Cosmo's species|
|Reproduction||Producing planet spores|
|Behind the Scenes|
Male Seedrians; referred to by some as Thorndrigans; are slightly larger than most of the inhabitants of Sonic's world, and are usually rather round, with short tails, small antler-like growths on their heads, and a colored ridge on the top of their heads; they are largely similar to trees in their make-up. Female Seedrians, or Petali, more closely resemble their plant ancestors, being mostly slender and having an arrangement of petals sprouting from their waists and buds — or bloomed flowers — atop their heads.
- Sonic X
- The name "Seedrian" is actually a fan designation, as this species has never been named in canon.