73. Stipules persisting
on the twigs into maturity; leaf blades usually less than
2 cm wide; petioles less than 0.6 cm long.
|
Salix
nigra |
73. Stipules absent or soon deciduous,
not present on mature twigs; leaf blades broader than 2 cm,
or if less than 2 cm wide (S. fragilis) then strongly
glaucus; petioles 0.5 - 2 cm long.
|
74 |
|
