Salix ligulifolia

(C. R. Ball) C. R. Ball ex C. K. Schneider

J. Arnold Arbor. 2: 188. 1922.

Common names: Strap-leaf willow
Endemic
Basionyms: Salix lutea var. ligulifolia C. R. Ball Bot. Gaz. 71: 428. 1921
Synonyms: Salix eriocephala var. ligulifolia (C. R. Ball) Dorn
Treatment appears in FNA Volume 7. Treatment on page 122. Mentioned on page 104, 123, 153, 154.

Shrubs, 1–8 m. Stems: branches yellowbrown, gray-brown, or redbrown, not glaucous, glabrous or villous; branchlets yellow-green or yellowbrown, glabrous, sparsely to densely villous, or velvety, (inner membranaceous bud-scale layer free, not separating from outer layer). Leaves: stipules foliaceous, apex rounded, convex, acute or acuminate; petiole convex to flat, or shallowly grooved adaxially, 3–18 mm, glabrous, pilose, or velvety to glabrescent adaxially; largest medial blade lorate, narrowly oblong, or narrowly elliptic, 60–133 × 12–30 mm, 2.9–6.4 times as long as wide, base rounded, convex, or subcordate, margins flat, usually serrulate or serrate, rarely (apparently) entire, apex acuminate to acute, abaxial surface glaucous, glabrous, sparsely short-silky or pubescent, hairs straight or wavy, adaxial dull, glabrous, sparsely short-silky, or midrib pubescent; proximal blade margins entire, serrulate, or crenulate; juvenile blade reddish or yellowish green, glabrous or sparsely to moderately densely pilose or puberulent abaxially, hairs white. Catkins flowering as or just before leaves emerge; staminate stout, 20.5–34 × 8–11 mm, flowering branchlet 0–3 mm; pistillate moderately densely flowered, slender to subglobose, 15.5–49 × 8–18 mm, flowering branchlet 1–6 mm; floral bract brown or bicolor, 0.8–1.6 mm, apex acute or rounded, abaxially hairy throughout or proximally (hairs usually arising from rachis), hairs wavy or curly. Staminate flowers: adaxial nectary narrowly oblong, oblong, flask-shaped, or triangular, 0.3–0.8 mm; filaments distinct or connate less than 1/2 their lengths (or appearing as a single stamen), glabrous or hairy basally; anthers purple or red turning yellow, (ellipsoid or globose), 0.5–0.8 mm. Pistillate flowers: adaxial nectary oblong, narrowly oblong, or flask-shaped, 0.3–0.9 mm, shorter than stipe; stipe 0.9–2.5 mm; ovary pyriform, glabrous, beak sometimes slightly bulged below styles; ovules 12–21 per ovary; styles 0.2–0.6 mm; stigmas flat, abaxially non-papillate with rounded tip, or slenderly cylindrical, 0.16–0.25–0.4 mm. Capsules 4–6 mm. 2n = 38.


Phenology: Flowering late Mar-mid Jun(-late Jul).
Habitat: Banks and floodplains, cienegas, sandy-clay or gravelly substrates
Elevation: 0-3100 m

Distribution

V7 127-distribution-map.gif

Ariz., Calif., Colo., N.Mex., Oreg., Utah, Wyo.

Discussion

Salix ligulifolia sometimes has leaf teeth that are so short that it is referred to as “entire-leaved.” That condition is uncommon and, even when some leaves appear to be entire, others with fine serrulations can be found on the same plant.

Hybrids:

Salix ligulifolia forms natural hybrids with S. geyeriana.

Selected References

None.

Lower Taxa

None.

"-0.4mm" is not declared as a valid unit of measurement for this property.

... more about "Salix ligulifolia"
21 +, 4 +, 1 +, 16 +  and 29 +
pubescent +, short-silky +, glabrous +  and glaucous +
flask--shaped +, oblong +  and triangular +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
short-silky;glabrous +
red 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 (?) +, Acute (?) +  and Acuminate (?) +
George W. Argus +
(C. R. Ball) C. R. Ball ex C. K. Schneider +
subcordate +, convex +  and rounded +
Salix lutea var. ligulifolia +
tapering +
yellowish green +  and reddish +
ferruginous +  and white +
crenulate +  and serrulate +
glabrous or +  and sparsely moderately densely pilose or puberulent +
toothed +  and 2-fid +
persistent +
redbrown +, gray-brown +  and yellowbrown +
villous +, glabrous +  and not glaucous +
flowered +  and pistillate +
glabrous +  and sparsely densely villous or velvety +
subglobose +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
intermediate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
pendulous +, spreading +  and erect +
Strap-leaf willow +
Ariz. +, Calif. +, Colo. +, N.Mex. +, Oreg. +, Utah +  and Wyo. +
0-3100 m +
connate +  and distinct +
hairy +  and glabrous +
bicolor +  and brown +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
pistillate +  and staminate +
bisexual +  and unisexual +
Banks and floodplains, cienegas, sandy-clay or gravelly substrates +
straight +
curly +  and wavy +
unbranched +  and spicate +
subterminal +  and axillary +
membranaceous +
hemiamphistomatous +, amphistomatous +  and hypostomatous +
6 cm60 mm <br />0.06 m <br /> (13.3 cm133 mm <br />0.133 m <br />) +
elliptic +, oblong +  and lorate +
1.2 cm12 mm <br />0.012 m <br /> (3 cm30 mm <br />0.03 m <br />) +
arranged +  and alternate +
marcescent +
deciduous +
entire +, serrate +  and serrulate +
2-7[-10]-carpellate +
pyriform +
glandular-dotted +
velvety +  and glabrescent +
convex;flat +
0.3 cm3 mm <br />0.003 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Flowering late Mar-mid Jun(-late Jul). +
J. Arnold Arbor. +
overlapping +
distinct +
decumbent;erect +
non-papillate +
cylindrical +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
caducous +  and persistent +
distinct +  and connate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
persistent +  and deciduous +
Salix eriocephala var. ligulifolia +
Salix ligulifolia +
Salix sect. Cordatae +
species +
rounded +
sympodial +, branching +  and heterophyllous +