[Argyroxiphium grayanum x  A. sandwicense subsp. sandwicense] x Dubautia linearis subsp. linearis]

 

A. grayanum x A. sandwicense Artificial Hybrid D. linearis

A. grayanum - A. sandwicense

 This remarkable hybrid combines the genomes of the Mauna Kea silversword, the greensword, and a Dubautia. It was produced artificially by first crossing the two Argyroxiphium species. This hybrid had about 63% pollen stainability and exhibited a maximum chromosome pairing configuration of 12II + 1M4 during meiosis. The primary hybrid was then crossed with Dubautia linearis to produce the trispecific hybrid which had about 12% stainable pollen and exhibited a maximum chromosome pairing configuration of 9II + 1M6 + 1 M3 during meioisis.


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