The Kau Silversword (Argyroxiphium kauense) is a long-lived, large usually single-stemmed and strictly monocarpic shrubs or sparingly branched and polycarpic shrub forming spherical rosette with numerous dagger-shaped silvery succulent leaves. Argyroxiphium kauense, grows about 1.8 m tall and is a close relative of the famous silversword of Maui (Argyroxiphium sandwicense subsp. macrocephalum). It produces a tall multi-branched flowering stem and the flowers have a subtle beauty, that distinctly show their kindred with the common daisy. This plant is monocarpic (one that bears fruit and flower only once and then dies) and appear to be self-incompatible.