Racomitrium molle Cardot


HOME         INDEX TO SPECIES         BACK TO KEY


Synonym: Codriophorus mollis (Cardot) Bednarek-Ochyra & Ochyra

Special status: None. Although known from only one site in Oregon, it has not been proposed for special status because the high elevation habitats where it is likely to be found have been so little explored.

Recognition: This species shares a lingulate leaf shape with Racomitrium aciculare and Racomitrium depressum. It differs from each of these in the very round, usually cucullate, leaf tip. The cupped (cucullate) leaf tip is best observed when the plants are moist and may be obscured in dried plants. This species has a shorter costa than the two look alikes, little more than 3/4 of the leaf length in contrast to the other species where the costa consistently approaches the leaf tip. It should be fairly easy to recognize in the field once seen under a microscope.

Distribution: Although only one Oregon record exists at present, from Klamath County, it will probably turn up occasionally at high elevations in the Cascades and other parts of the state. High elevation (and high latitude) populations of R. aciculare will be confused with this species when the tip is slightly cucullate and less dentate than normal. In such a situation, a large number of leaves must be studied to determine the modal character of its morphology.

Comments: Once the genus is recognized, this species will be identified by hand lens because of the cucullate apex on most leaves.


Racomitrium molle; Snow Lakes, Klamath Co., Oregon. DHW 8429a.



Racomitrium molle; Snow Lakes, Klamath Co., Oregon. DHW 8429a.



HOME         INDEX TO SPECIES         BACK TO KEY


Guide to Racomitrium of Oregon
Created 2007 Northwest Botanical Institute