|  | Interior: Answers
    to key questions in Conifers & Catkin-Bearing Trees and Shrubs of
    Saskatchewan, Fascicle 5, Flora of Saskatchewan by Anna Leighton leading
    to this species. The answers are in the order you would normally work
    through the key. 
     
      |  | Catkins
        usually flowering as leaves emerge, sometimes just before leaves emerge
        or throughout the season, subtended by small green leaves of the
        flowering branchlet that supports them.  NOT  [Catkins usually
        flowering before leaves emerge, borne directly on bare branches
        (sessile) and subtended by 1 - 3 short, greenish or brownish, caducous
        bract-like leaves] |  |  | Low to
        tall shrubs or trees; not confined to subarctic regions.  NOT
        [Dwarf shrubs <= 0.15 m (15 cm) tall; subarctic regions] |  |  | Shrubs,
        usually with several stems; ovaries glabrous or hairy.   NOT 
        [Trees, with a single trunk, or with several trunks of tree stature;
        ovaries glabrous] |  |  | Plants
        flowering as leaves emerge or throughout the season, often bearing
        branched catkins; leaf blades linear or strap-shaped, 9 – 14 – 24
        times longer than wide, up to 11 mm wide with margins remotely
        spinulose-serrulate, the teeth widely spaced; hairs on leaves white,
        ferruginous hairs lacking; plants forming extensive colonies by root
        shoots.  NOT [Plants without the above combination of
        characteristics.]
           |  | 
  |  | Salix: Answers
    to key questions in Conifers & Catkin-Bearing Trees and Shrubs of
    Saskatchewan, Fascicle 5, Flora of Saskatchewan by Anna Leighton leading
    to this genus. 
     
      |  | shrubs or trees; NOT [trees] |  |  | buds covered by 1 scale; NOT  [buds
        covered by 3-10 scales] |  |  | buds scale not resinous; NOT [bud scale
        usually resinous] |  |  | catkins sessile or terminating flowering
        branchlets; NOT [catkins sessile] |  |  | catkins erect, spreading, or +/-
        pendulous; NOT [catkins pendulous] |  |  | floral bracts entire, erose, bifid, or
        irregularly toothed; NOT [floral bracts deeply cut] |  |  | perianth reduced to an adaxial nectary
        (rarely also an abaxial nectary, then the 2 nectaries distinct or
        connate into a shallow cup); NOT [perianth reduced to a
        non-nectariferous, cup-shaped or shallow saucer-shaped floral disc] |  |  | stamens 1, 2, or 3 – 10; NOT [stamens 6
        – 60 (70)] |  |  | capsules obclavate to ovoid or ellipsoid;
        NOT [capsules narrowly ovoid to spherical, with the floral disc
        persistent at base] |  |  | capsules 2-valved; NOT [capsules 2 - 4
        valved] |    |