| Entity | Outer phyllary abaxial indumentum | Plant base | Adaxial leafsurface glandular vesicles | Abaxial leafsurface septate trichomes | Phyllary shape | Foliaceous bracts subtending capitula>10 mm long | Cauline leaves>10 mm wide |
|---|---|---|---|---|---|---|---|
| gla, glabrous; sca, scabridulous; rhi, rhizomatous; fib, fibrous; ses, sessile; abs, absent; pre, present; acu, acuminate; obt, obtuse. | |||||||
| X. alpinum | sca | rhi | sti | abs | acu | Yes | No |
| X. aff. palustre | sca | rhi | ses | abs | acu | Yes | No |
| X. collierianum | gla | fib | sti | abs | acu | Yes | No |
| X. milliganii | gla | fib | abs | pre | acu | No | No |
| X. palustre | gla | rhi | abs | abs | acu | No | No |
| X. subundulatum | sca | rhi | sti | abs | acu | Yes | Yes |