Comparison of Boechera xylopoda to B. perennans and B. pulchra
See Arabis = Boechera species with non-erect fruit for the background for this page.
Boechera xylopoda is said to be an ancient hybrid between B. perennans and B. pulchra. Fig. 4 shows pictures of a number of characteristics of all three species, to show its intermediate nature.
Click on each picture to get a larger version.
Fig. 4. Pictures of A. perennans, A. pulchra var. gracilis, and A. pulchra var. pulchra
| Characteristic | A. perennans B. perennans | A. pulchra var. gracilis B. xylopoda | A. pulchra var. pulchra B. pulchra |
|---|---|---|---|
| Flower | 
| 
| 
|
| Inflorescence
| 
| 
| 
|
| Young Fruit | 
| 
| 
|
| Inflorescence with Mature Fruit
Note that the hairs of A. pulchra var. gracilis are gone on the mature fruit. | 
| 
| (not available) |
| Basal Leaves for plants in flower
The rosettes of "A. holboellii" often have a larger number of leaves than are shown here. | 
| 
| (not available) |
| Cauline Leaves for plants in flower | 
| 
| 
|
| Stem Hairs |
| 
| 
|