The Iris dataset is one of the most famous datasets in machine learning and statistics. It consists of 150 samples of iris flowers from three different species: Iris setosa, Iris versicolor, and Iris virginica. Each sample has four features: the lengths and the widths of the sepals and petals.

Here's a brief overview of each species and the features:

Species Iris setosa Iris versicolor Iris virginica Features

1. Sepal Length (cm)
2. Sepal Width (cm)
3. Petal Length (cm)
4. Petal Width (cm)