Fl. 97 mm wide, greenish white; perianth segments very broadly ovate, blunt, slightly mucronate, spreading, plane or a little concave, smooth, overlapping half; the inner segments more narrowly ovate, shouldered at base, slightly inflexed, with margins slightly wavy; corona cylindrical, angled, mouth expanded, with rim rolled, widely and very shallowly crenate.
Named after the childhood home of Guy Wilson. Knowehead was located outside of Broughshane in County Antrim, overlooking the near-by River Braid.
Knowehead, 2 W-W, Guy L. Wilson, Irlande du Nord, 1954
Photo #11688 Ben Blake, Etats-UnisKnowehead, 2 W-W, Guy L. Wilson, Irlande du Nord, 1954
Photo #2063 Kirby Fong, Etats-Unis