About Leptinella squalida Hook.fil.
Leptinella squalida is a species of flowering plant in the daisy family that is native to New Zealand. It gets the common name "brass buttons" from its yellow, button-shaped flowers. It grows to around 5 centimeters, or 2 inches, tall, and spreads indefinitely through rhizomes. One of its cultivars, L. squalida 'Platt's Black', has near-black foliage and is cultivated as an ornamental plant, particularly for use in rock gardens and flowering lawns.