Argyroxiphium kauense x Dubautia scabra subsp. scabra


A. kauense Natural Hybrid D. scabra

This is a  rare hybrid combination occurring in very low numbers in the Kahuku Ranch, Hawaii population of ka'u silversword.  The first picture of the vegetative plant was taken in the field.  The next three pictures are of a flowering plant established in cultivation from a field-collected cutting.  Pollen stainability in this hybrid was 27%.  The maximum chromosome pairing configuration observed at meiosis was 11II + 1 M6.

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