Salix sect. Helix

Dumortier

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"
21 +, 4 +, 1 +, 16 +  and 29 +
114 +, 95 +, 76 +, 57 +  and 38 +
red turning yellow +
Laciniate (?) +, Toothed (?) +  and Entire (?) +
George W. Argus +
Dumortier +
Salix sect. Vetrix +
tapering +
ferruginous +  and white +
toothed +  and 2-fid +
persistent +
flowered +  and sessile +
subglobose to globose +  and stout +
slender +  and stout +
intermediate +
pistillate +  and staminate +
pendulous +, spreading +  and erect +
connate +  and distinct +
light rose +, bicolor +, tawny +, black +  and brown +
pistillate +  and staminate +
bisexual +  and unisexual +
gray +, ferruginous +  and white +
flattened +
unbranched +  and spicate +
subterminal +  and axillary +
membranaceous +
hemiamphistomatous +, amphistomatous +  and hypostomatous +
oblong +  and narrowly broadly elliptic oblanceolate obovate or broadly obovate +
arranged +  and alternate +
marcescent +
deciduous +
2-7[-10]-carpellate +
short-silky +
glandular-dotted +
usually convex;flat +
Bijdr. Natuurk. Wetensch. +
overlapping +
distinct +
decumbent;erect +
non-papillate +
cylindrical +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
caducous +  and persistent +
distinct +  and connate +
persistent +  and deciduous +
Salix sect. Helix +
Salix subg. Vetrix +
section +
rounded +
sympodial +, branching +  and heterophyllous +
tree +  and shrub +