How to recognize Campylium stellatum: This a mat forming green to yellow or brownish moss, with leaves that point away from the stem and branches giving it a spiky appearance. These ovate leaves have long slender channeled tips. Usually under the microscope short double midribs can be seen, but often only a short (1/4 of leaf) single costa is present. The alar cells are enlarged hyaline (clear) rectangles with several rows of smaller short rectangles to quadrate often yellowish cells just above.
Where to find Campylium stellatum: Look for this moss on wet soil or humus in open calcareous wetlands.