Box elder (Acer negundo) blooming branches arch over Rock Creek in ealry spring.
A fallen tree lies in a swampy area overrun with invasive lesser celandine, which is smoothering the naitve wildflowers, such as mayapples. Rock Creek Park in spring.
A beloved and common wildflower, wood violets (Viola soria) display furry-throated spurred blossoms above their heart-shaped green leaves.
