Generally plants are divided into two groups: vascular and non-vascular. Many of the fossil plants found in the park were non-vascular plants. Living groups of non-vascular plants include the bryophytes: liverworts, hornworts, and mosses. Ferns are vascular, but we’re including them in this section, as a non-seed plant. All of these plants tend to be thought of in more humid areas, but they can be found here. Often they are close to a seep spring or an area where there is intermittent moisture.
Grimmia sp. moss
Within bryology, Grimmia species are notorious for their morphological variability.
Last updated: March 25, 2018