alright, hopefully this will be the final draft of my idea

Root dryads

Size - About half that of a human, full sized ones are twice the size of a human
Appearance- Children can look like a young girl to an adult looking like a human female in their prime
Their basic appearance is much like a regular dryad, any color of green skin that root themselves into the ground, however, there is one main difference, root dryads have have large pedals growing on the upper halves of their bodies to help disguise them as plants

Habits- They live in large groups, burrying into the ground to disguise themselves as large flowers at the bases trees, they only attack prey that is slightly larger then a human or anything smaller then that.
They dont attack unless the prey tries to force them out of the ground or they are extremly hungry. They will attack by popping up out of the ground up to their waist and try to pull the prey down into the earth, suffocating him and leaving him underground to have their bodily nutrients to be absorbed by the group, leaving the prey as a dried up skeleton in only hours.

If someone comes by them, they will pop out of the ground and let out little squeaks of joy to greet their new found friend, sometimes giving them their special honey made from the extra nutrients they absorb, it is very rare and sweet, a delicacy that many people have heard of but not tried.

If the same person comes back to the same group of root dryads each day for a while, they will eventually grow very attached with that person and help them hide from predetors.

Protection- Normally they will just sink back into the ground to hide from predetors they are scared of or too big for them to handle, but sometimes their predetors will try to dig them up to use them for a recipie or powerful potion, if this happens they will all emmit an extremly high pitched scream, which will either effectively deafen and stun the predetor long enough for the root dryads to pull them down and drain them of nutriends, alert their larger friends to their danger, or attracting a larger predetor to eat the smaller one while they hide in the ground


Extras- It is said that groups of root dryads can sing a beautiful chorus that can be heard for miles