Cyclospermum

{{Short description|Genus of flowering plants}}

{{Automatic taxobox

|image = Starr_010520-0107_Ciclospermum_leptophyllum.jpg

|image_caption = Cyclospermum leptophyllum

|display_parents = 2

|taxon = Cyclospermum

|authority = Lag.

|subdivision_ranks = Species

|subdivision = 3, see text

}}

Cyclospermum (also, Ciclospermum) is a small genus of plants in the family Apiaceae. There are three species, including the well-known weed Cyclospermum leptophyllum, the marsh parsley or fir-leafed celery.