Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
stalk [stɔːk] n (of flower) сте́бель m (of fruit) черено́к#
vt (person, animal) кра́сться*(подкра́сться*perf) к +dat
vi
to stalk out/off удаля́ться (удали́ться perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.