De Candolle, 1813
TB 30" E Y4L
From Cornell Extension Bulletin 112, 1925: "Color effect a light yellow self. S. martius yellow. F. napthalene yellow, faintly veined olive buff. The beard is fine, dense yellow. This variety is a moderately vigorous grower and has stiff, broad foliage which supports the numerous, high, short-branched flower stalks. The blooms are fair sized, sweet scented, and admirable for early cut flowers. Being one of the older sorts and floriferous, this variety is still recommended for mass plantings. Rating 70."
Note: Flavescens is a wild collected variety, and was once commonly listed as I. flavescens. However it now recognized to be a naturally occurring hybrid and not a separate species.