This is Ptilidium californicum, the Pacific fuzzwort, which is a tiny liverwort that often grows on trees. I saw it fairly often while exploring Croker Island in Say Nuth Khaw Yum Provincial Park!
#liverwort #epiphyte #fuzzwort #ptilidium #bryophte #inaturalist #macro #macrophotography #plants #vancouver #britishcolumbia #canada #nature