Are there different kinds?Some might call that a kind of understatement
Partial species list
* Ranunculus acraeus - a newly described species from Otago, New Zealand
* Ranunculus acris - Meadow buttercup
* Ranunculus alpestris
* Ranunculus aquatilis - Common water crowfoot
* Ranunculus arvensis - Corn buttercup
* Ranunculus asiaticus - Persian buttercup
* Ranunculus auricomus - Goldilocks buttercup
* Ranunculus bulbosus - Bulbous buttercup
* Ranunculus californicus - California buttercup
* Ranunculus cymbalaria - Marsh buttercup
* Ranunculus ficaria - Lesser celandine
* Ranunculus flammula - Lesser spearwort
* Ranunculus fluitans - River water crowfoot
* Ranunculus glaberrimus - Sagebrush buttercup
* Ranunculus glacialis - Glacier buttercup
* Ranunculus hispidus - Bristly buttercup
* Ranunculus lapponicus - Lapland buttercup
* Ranunculus lingua - Greater spearwort
* Ranunculus lyallii - Mount Cook Lily - reputedly the largest buttercup
* Ranunculus occidentalis - Western buttercup
* Ranunculus peltatus - Pond water crowfoot
* Ranunculus platanifolius - Large white buttercup
* Ranunculus pygmaeus - Pygmy buttercup
* Ranunculus repens - Creeping buttercup
* Ranunculus sardous - Sardinian buttercup
* Ranunculus sceleratus - Celery-leaved buttercup
* Ranunculus septentrionalis - Swamp buttercup
* Ranunculus sieboldii
To name just a few.
Some look real nice,but weed is as weed goes(all over the lawn)