Rahul Sharma (Editor)

Opuntia diploursina

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Kingdom  Plantae
Family  Cactaceae
Tribe  Opuntieae
Rank  Species
Order  Caryophyllales
Subfamily  Opuntioideae
Genus  Opuntia
Opuntia diploursina httpswwwopuntiadscomwpcontentgalleryopunt
Similar  Opuntia trichophora, Opuntia atrispina, Opuntia pinkavae, Opuntia repens, Opuntia pusilla

Opuntia diploursina is a species in the Cactaceae family, that grows near the Grand Canyon and Lake Mead National Recreation Area. This species is a close relative of Opuntia erinacea but "...differs in minor spines more closely appressed to pad surface, spines smaller in diameter and more flexible, inter-areolar distance less, upright growth habit, larger fruit with longer, more flexible spines, larger seeds, and diploid chromosome number (2n=22)".

Opuntia diploursina (2n=22) is known to hybridize with O. basilaris (2n=22) wherever the species co-occur. This results in fertile progeny that can backcross with either parent eventually creating a hybrid swarm. The polyploid O. erinacea (2n=44) which is widely distributed in the Mojave and Great Basin deserts, is suspected to be a stabilized allopolyploid derived from O. diploursina and O. basilaris. Some O. diploursina x basilaris progeny resemble O. basilaris var. treleasei (2n=33), an endemic species of California.

References

Opuntia diploursina Wikipedia


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