Fl. large; perianth segments broadly ovate or oblong, prominently mucronate, spreading, of good substance, overlapping one-third; the inner segments more nearly ovate, a little inflexed, with margins wavy, recurved at base; corona cup-shaped, ribbed, soft canary yellow, mouth straight, wavy, rim crenate.
'Leedsii 'Katherine Spurrell'', 'Leedsii 'Vincenti Katherine Spurrell'', 'Vincenti Katherine Spurrell'
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