This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
A popular Californian annual, 1-2 ft. high, with divided fern-like leaves and tubular flowers of orange, deep and pale purple. There are several varieties, all easily raised in gentle heat, or as hardy annuals. Nivalis is a pure-white kind with an orange eye; achilleoefolia, purple blue; capitata, blue; and coronopifolia (or Ipomopsis elegans), scarlet, best treated as a biennial, are amongst the best-known kinds in which a trade is done every spring in seeds and young plants.