. >> they're similar to a lefto spermum. which is when captain cook sailed, he would take leaves from these plants and make tea to cure scurvey. >> there are also, there's another tree that is new zealand native. it is called the new england crils tree. they will survive in the worst conditions, the saltiest s. they have pretty aggressive roots, you want to plant it with care, but it can be a big beautiful tree, and really. >> if you want to see the big, the biggest, most beautiful, metro -- that i know of, it is in the golden gate park as you go in the side entrance, right near the side entrance where the pond is, there's a huge one, it must be 80 feet tall with aerial roots coming down. it is gorgeous. they get enormous. >> they can. >> that's -- >> it is a great tree for some of our micro climb climates. one last thing, this in tree basin rnings what they're doing, they're creating, they're trying to reduce the tripping hazard and they put these pavers around the base of the tree, it is a good alternative to tree guard, w