Seedfork said:
1. I would like to know of any other named varieties that form plants from "runners", "rhizomes", or "stolons"?
2. Can just a piece of a "runner", "rhizome", or "stolon" grow a new plant.
I have personally dug up daylilies that were known to have "runner" type "roots" and had several plants pop up later in that area. So I am thinking that no part of a crown is necessary for this to happen.
A rhizome is an underground horizontal stem, a stolon goes along or above the soil surface. They are sometimes incorrectly used interchangeably. I have not seen a daylily produce a stolon, only rhizomes. Sometimes stolon and runner are used interchangeably also, but they are often differentiated. A strawberry stolon is often described as being a "runner", where the new plant only occurs at the very end. A stolon may produce several new plants along its length. They are also sometimes differentiated on the basis that a stolon can survive independently whereas a runner cannot.
But unless someone is seeing a daylily form these structures at or above the soil surface, stolon and runner are not applicable to daylilies and the underground stem is a rhizome. Not sure if that helps or not!
Yes a daylily rhizome can grow a new plant, or several new plants even without a piece of crown. A rhizome is not a root and daylily roots cannot grow new plants.
Here's a sequence of pictures I took some years ago showing a rhizome that had become detached from a crown. You'll probably need to click on the image to see the full sequence of development. The top image is a daylily rhizome that had detached from a crown, and the others show its later development into individual fans:
