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Planifolia: 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.
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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. NOT [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.] |
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Ovaries
hairy. NOT [Ovaries glabrous.] |
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Ovaries
short- or long-silky; stipes 0.2 ? 2.7 mm; plants less hairy; not
restricted to the south short of Lake Athabasca. NOT [Ovaries
villous; stipes 0 - 0.3 mm; plants densely hairy; south shore of Lake
Athabasca.] |
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Stipes
short (0.2 ? 1.1 mm), styles long (0.5 ? 2 mm); capsules 3 ?
7 mm. NOT [Stipes long (0.8 ? 2.7 mm), styles short (0.2 ? 1
mm); capsules 4.5 ? 11 mm.] |
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Emerging
leaves with lower surfaces sparsely hairy, the blades wider, and margins
flat; branches flexible at base, rarely strongly glaucous. NOT
[Emerging leaves with lower surfaces uniformly densely hairy, the blades
narrowly strap-shaped or narrowly oblanceolate, and margins usually
revolute; branches highly to somewhat brittle at base, sometimes
strongly glaucous.]
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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.
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shrubs or trees; NOT [trees] |
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buds covered by 1 scale; NOT [buds
covered by 3-10 scales] |
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buds scale not resinous; NOT [bud scale
usually resinous] |
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catkins sessile or terminating flowering
branchlets; NOT [catkins sessile] |
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catkins erect, spreading, or +/-
pendulous; NOT [catkins pendulous] |
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floral bracts entire, erose, bifid, or
irregularly toothed; NOT [floral bracts deeply cut] |
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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] |
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stamens 1, 2, or 3 ? 10; NOT [stamens 6
? 60 (70)] |
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capsules obclavate to ovoid or ellipsoid;
NOT [capsules narrowly ovoid to spherical, with the floral disc
persistent at base] |
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capsules 2-valved; NOT [capsules 2 - 4
valved] |
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