Salix myrsinifolia

Salisbury

Prodr. Stirp. Chap. Allerton, 394. 1796.

Common names: Dark-leaved willow
Synonyms: Salix nigricans Smith
Treatment appears in FNA Volume 7. Treatment on page 125. Mentioned on page 94, 126.

Stems: branches dark redbrown or gray-brown, not glaucous, glabrous or hairy, (peeled wood smooth or striate with relatively few, short striae); branchlets redbrown, moderately to very densely pubescent or velvety. Leaves: stipules usually foliaceous, sometimes minute rudiments on early ones, foliaceous on late ones, (ca. 4 mm), apex acute; petiole convex to flat, or shallowly grooved adaxially, 3.5–12 (–15) mm, villous to puberulent adaxially; largest medial blade (sometimes hemiamphistomatous), broadly obovate, elliptic, broadly elliptic, or subcircular, 24–52 (–100) × 12–45 mm, base concave, rounded, subcordate, cordate, or cuneate, margins sometimes slightly revolute, serrulate, or crenulate to subentire, apex abruptly acuminate or acute, abaxial surface glaucous (tip often not glaucous), sparsely to moderately densely puberulent, or silky to glabrescent, hairs appressed or spreading, straight or wavy, adaxial slightly glossy, glabrescent or sparsely to moderately densely puberulent, pubescent, or short-silky (especially midrib); proximal blade margins serrulate, crenulate, or entire; juvenile blade sometimes reddish, long-silky, villous, tomentose (at least on midrib), or glabrous abaxially, hairs usually white, rarely somewhat ferruginous. Catkins flowering as leaves emerge; staminate (densely flowered), stout or subglobose, 17–35 mm, flowering branchlet 1–3 mm; pistillate densely flowered, stout, 9–11 (–30) (–80 in fruit) mm, flowering branchlet 2–5.5 mm; floral bract pale-brown, 1–1.9 (–2.8) mm, apex acute, convex, or rounded, abaxially sparsely hairy, hairs straight or wavy. Staminate flowers: adaxial nectary 0.5–0.7 mm; filaments distinct; anthers purple turning yellow, (ellipsoid or shortly cylindrical), 0.5–0.8 mm. Pistillate flowers: adaxial nectary ovate, square, or flask-shaped, 0.4–0.6 (–1) mm; ovary pyriform, pubescent throughout or in patches or streaks, or glabrous (hairs refractive), beak gradually tapering to styles; ovules 12–14 per ovary; styles 0.6–1.5 mm. Capsules 6–10 mm. 2n = 114.


Phenology: Flowering mid Mar-mid Jun.
Habitat: Roadsides, waste places
Elevation: ca. 100 m

Distribution

V7 132-distribution-map.gif

Introduced; Ont., Eurasia

Discussion

Salix myrsinifolia may be naturalized in the vicinity of Ottawa, Ontario, but that needs confirmation.

Selected References

None.

Lower Taxa

None.

... more about "Salix myrsinifolia"
21 +, 4 +, 1 +, 16 +  and 29 +
glaucous +  and sparsely moderately densely puberulent or silky +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
flask--shaped +, square +  and ovate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
glabrescent or;sparsely moderately densely puberulent pubescent or short-silky +
purple turning yellow +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Rounded (?) +, Convex (?) +, Acute (?) +  and Acuminate (?) +
George W. Argus +
Salisbury +
cuneate +, cordate +, subcordate +, rounded +  and concave +
Salix sect. Vetrix +
tapering +
ferruginous +  and white +
entire +, crenulate +  and serrulate +
glabrous +, tomentose +, villous +  and long-silky +
toothed +  and 2-fid +
persistent +
gray-brown +  and dark redbrown +
hairy +, glabrous +  and not glaucous +
flowered +  and pistillate +
1.1 cm11 mm <br />0.011 m <br /> (3 cm30 mm <br />0.03 m <br />) +
velvety +  and pubescent +
subglobose +
slender +  and stout +
0.2 cm2 mm <br />0.002 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
intermediate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
pendulous +, spreading +  and erect +
Dark-leaved willow +
Ont. +  and Eurasia +
ca. 100 m +
hairy +  and glabrous +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
pistillate +  and staminate +
bisexual +  and unisexual +
Roadsides, waste places +
ferruginous +  and white +
straight +
spreading +  and appressed +
unbranched +  and spicate +
subterminal +  and axillary +
membranaceous +
hemiamphistomatous +, amphistomatous +  and hypostomatous +
oblong +  and narrowly broadly elliptic oblanceolate obovate or broadly obovate +
arranged +  and alternate +
5.2 cm52 mm <br />0.052 m <br /> (10 cm100 mm <br />0.1 m <br />) +
marcescent +
deciduous +
24mm;52mm +
subcircular +, elliptic +  and obovate +
1.2 cm12 mm <br />0.012 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
crenulate +  and subentire +
2-7[-10]-carpellate +
glabrous +, in patches or streaks +  and pubescent +
pyriform +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
glandular-dotted +
villous +  and puberulent +
convex;flat +
0.35 cm3.5 mm <br />0.0035 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering mid Mar-mid Jun. +
Prodr. Stirp. Chap. Allerton, +
overlapping +
distinct +
decumbent;erect +
non-papillate +
cylindrical +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
caducous +  and persistent +
distinct +  and connate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
persistent +  and deciduous +
Salix nigricans +
Salix myrsinifolia +
Salix sect. Nigricantes +
species +
pointed +  and rounded +
sympodial +, branching +  and heterophyllous +
tree +  and shrub +