What's the difference between crowfoot and ranunculus?

Crowfoot

Definition:

(n.) The genus Ranunculus, of many species; some are common weeds, others are flowering plants of considerable beauty.
(n.) A number of small cords rove through a long block, or euphroe, to suspend an awning by.
(n.) A caltrop.
(n.) A tool with a side claw for recovering broken rods, etc.

Example Sentences:

(1) The plants – such as hornwort and water crowfoot – thrive on the phosphorus and nitrogen from the water, and stop the growth of algae and pathogens.
(2) Until 1949 she published under her maiden name of Crowfoot until she was persuaded to use her married name for research on the chemistry of penicillin.

Definition:

(n.) A genus of herbs, mostly with yellow flowers, including crowfoot, buttercups, and the cultivated ranunculi (R. Asiaticus, R. aconitifolius, etc.) in which the flowers are double and of various colors.

Example Sentences:

(1) Studies on various antifungal properties of the leaf extraxt of Ranunculus sceleratus L. showed that it was thermostable up to 100 degrees C, retained activity on autoclaving, and remained active up to 15 days at room temperature.
(2) The lack of water flow means that we've lost almost all the ranunculus weed that holds lots of invertebrates and produces cover for the fish.
(3) Protoanemonin, a component of Ranunculus bulbosus, was tested as an antifungal agent on selected strains of dermatophytes and yeasts.
(4) The analgesic and anti-inflammatory effects of Ranunculus japonicus extract after parenteral administration were determined in several animal models.
(5) The same result was obtained with chromoplasts, similar in structure, from Laburnum anagyroides and Ranunculus acer.
(6) Significantly results obtained with a commercial tincture of Ranunculus bulbosus illustrate this method which can be extended to complex mixtures of natural products in order to isolate active fractions.