Capsella (plant)
| Capsella | |
|---|---|
 |
|
| Shepherd's purse (Capsella bursa-pastoris) | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: |
Capsella Medik. |
| Species | |
|
See text. |
|
See text.
Capsella is a genus of herbaceous plant and biennial plants in the mustard family Brassicaceae. It is a close relative of Arabidopsis, Neslia, and Halimolobos.
Some recent authors circumscribe Capsella to contain only three species: Capsella bursa-pastoris, Capsella rubella and Capsella grandiflora.
Capsella rubella is a self-fertilizing species that became self-compatible 50,000 to 100,000 years ago. Its outcrossing progenitor was Capsella grandiflora. In general, the shift from outcrossing to self-fertilization is among the most common transitions in flowering plants. Capsella rubella is studied as a model for understanding the evolution of self-fertilization.
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