[1] : The Collaborative International Dictionary of English v.0.48

sallow \sal"low\ sa^l"l-o, n. oe. salwe, as. sealh; akin
   to ohg. salaha, g. salweide, icel. selja, l. salix, ir. sail,
   saileach, gael. seileach, w. helyg, gr. "eli`kh.
   1. the willow; willow twigs. poetic --tennyson.
      1913 webster

            and bend the pliant sallow to a shield. --fawkes.
      1913 webster

            the sallow knows the basketmaker's thumb. --emerson.
      1913 webster

   2. bot. a name given to certain species of willow,
      especially those which do not have flexible shoots, as
      salix caprea, salix cinerea, etc.
      1913 webster

   sallow thorn bot., a european thorny shrub hippophae
      rhamnoides much like an elaeagnus. the yellow berries
      are sometimes used for making jelly, and the plant affords
      a yellow dye.
      1913 webster
see also:
salix caprea salix cinerea sallow thorn hippophae rhamnoides 

[2] : WordNet (r) 2.0

salix cinerea
     n : eurasian shrubby willow with whitish tomentose twigs syn: gray
         willow
see also:
gray willow 

Salix >> S Words
Salix, definition of term: Salix
salix_pag1.html

Salix Blanda >> S Words
Salix Blanda, definition of term: Salix Blanda
salix+blanda_pag1.html