Perhaps Ranunculus asiaticus Here is a link that might be useful: Ranunculus

The very best varieties of Alstromeria are grown from tissue culture. The plugs are very expensive. But, the plugs are best in terms of flower quality and steady production throughout the season. Color is sensitive to climate, tending to bleach out in hot and bright weather; and, they are very intense in cooler weather. The yellow flowering Alstromeria have a chilling requirement. The only one I know that are cold sensitive are the purple flowering ones. These have a complete melt down with the first frost. Alstromeria are not grown as annuals here. They are herbaceous perennials. With plugs being very costly, it would be a poor business decision to treat them as annuals. The orange Alstromeria pictured in your photo can be grown in the field in my region. The Alstromeria propagated from tissue culture are patented. Plant division is forbidden according to the terms of purchase. What some of us flower farmers do is set the plants several feet apart. Within a couple of years, the plants all grow together. Overgrown beds of Alstromeria are rejuvenated by disking much the same way we rejuvenate our yarrow. The period of production for Alstromeria depends, of course, on the cultivar. Some plants are nearly continuous. Others have one or two peaks during the season. If you plant a mix of cultivars, production is continuous from May to September in our climate with frost and cold winters. Alstromeria is produced year round in frost free climates. There you have the short and long story of Alstromeria. Most likely the Alstromeria in your photo came from South America, where they are also grown in fields. The yellow flower which is widely used as a filler, is Aster Solidago. This is also grown in South America for the floral industry. This plant is a perennial, and can be grown here in our region as well; It is hardy in zones 3-10.

You got the "common name" right in your picture tag, Yvonne. It is called "Golden Chain" but when you mention that most people think of Laburnum or Cassia fistula.

that is it! Very heat and drought tolerant too. There are now several cold hardy varieties of differing colors available.