Yeah it is complicated and interesting behavior that it would be interesting to see more studies about. It’s been a while since I looked at the literature, but I think maybe the ones that don’t produce pollen probably aren’t old at all, like less than a few hundred years. One would expect the purely asexual lineages would be particularly susceptible to going extinct, unless some regulatory factor can turn their ability to produce pollen back on under certain circumstances. I guess many species have individuals which are sterile, so maybe it is not surprising that that happens in taraxacum, just unusual that the sterile individuals can survive asexually for centuries instead of a single organism’s lifetime.
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Overlooked dandelion diversity in BC (and everywhere in North America?) | 120 | 10283 | November 6, 2021 | |
| About those dandelions | 70 | 15171 | April 21, 2023 | |
| Should New Disruptive Technologies be Used for Classification in Ancient Linnaean Rankings | 326 | 6860 | June 4, 2024 | |
| A way to prevent unexperienced users from identifying very critical taxa? | 56 | 2439 | December 5, 2020 | |
| "Trying to define the undefinable": is iNat too focused on species? | 84 | 3220 | August 31, 2023 |