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What happened to that cholla?

If you find a cholla that just looks weird compared to its neighbors chances are it's an intergrade - either a two-parent hybrid or some level of back-crossing to one parent or the other*. One helpful aid to finding the relationship is to ID the taxon of the chollas that are found nearby. When encountering the odd ones make a note, and if possible separate observations, of the cholla taxa in the area.
There are numerous records of cholla intermediates in herbarium collections; many of those are noted by Donald Pinkava in this Canotia article.
*Or to a third taxon - theoretically possible

Posted on February 4, 2024 03:47 PM by stevejones stevejones | 0 comments | Leave a comment

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Manually enter cholla observations (genus Cylindropuntia) that show signs of hybridization or introgression here. Be aware that the IDs are mostly based on photos only, so the reliability is putative at best. If you run into a suspicious-looking cholla, it will help to note what species are in the area. If you don't know their names, you can post observations of them on iNaturalist ...more ↓

stevejones created this project on January 24, 2024
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