The seed pod is not so hairy as in l. anagyroides and is not winged and hardly thickened. 'Vossii', Voss's Laburnum, has flower clusters fragrant and up to 50 cm long, with seed pods carrying only 1 or 2 seeds. A selection made near Boskoop in Holland in the late 19th century and described in 1875 by Cornelis de Vos of Hazerswoude. Syn. L. × vossii hort.