Show Lower Taxa
Salix sect. Helix
Bijdr. Natuurk. Wetensch. 1: 56. 1826.
Treatment appears in FNA Volume 7. Treatment on page 162.
Shrubs or trees, 1.5–5 m, (branching opposite or subopposite). Buds caprea-type. Leaves: stipules on late ones absent; largest medial blade (amphistomatous), 2.8–9.2 times as long as wide, adaxial surface glaucous. Staminate flowers: filaments hairy basally. Pistillate flowers: adaxial nectary longer than stipe; stipe 0–0.1 mm; ovary very densely short-silky; stigmas with flat, non-papillate abaxial surface and rounded tip, 0.16–0.2–0.24 mm.
Distribution
Introduced; Europe
Discussion
Species 30 (1 in the flora).
Selected References
None.
Lower Taxa
"-0.24mm" is not declared as a valid unit of measurement for this property.
... more about "Salix sect. Helix"
absent +
non-papillate +
glaucous +
red turning yellow +
dehiscent +
entire +
absent +
tapering +
juvenile +
toothed +
pistillate +
persistent +
pliable +
glaucous +
flowering +
caprea-type +
flowering +
globose +
arillate +
Europe +
absent +
scant +
hairy +
slender +
distinct +
subtending +
capsular +
arillate +
long +
silky +
flattened +
fasciculate +
racemose +
flowering +
year-round +
separating +
membranaceous +
true +
0.7-13.7 +
simple +
marcescent +
deciduous +
2.8-9.2 +
connate +
foliaceous +
absent +
2-7[-10]-carpellate +
1-7[-10]-locular +
axile +
parietal +
short-silky +
2;37 +
absent +
absent +
modified +
reduced +
grooved +
glandular-dotted +
absent +
usually convex;flat +
fused +
intruded +
Bijdr. Natuurk. Wetensch. +
1826 +
layering +
layering +
overlapping +
distinct +
connate +
absent +
layering +
not spinose +
decumbent;erect +
glabrescent;pubescent +
truncate +
non-papillate +
cylindrical +
foliaceous +
absent +
rudimentary +
pistillate +
Salix sect. Helix +
Salix subg. Vetrix +
section +