Salix lasiandra var. caudata

(Nuttall) Sudworth

Bull. Torrey Bot. Club 20: 43. 1893.

Common names: Tail-leaf willow
Endemic
Basionyms: Salix pentandra var. caudata Nuttall N. Amer. Sylv. 1: 61, plate 18. 1842
Synonyms: Salix lucida subsp. caudata (Nuttall) A. E. Murray
Treatment appears in FNA Volume 7. Treatment on page 48. Mentioned on page 46, 47.

Leaves: stipules foliaceous, apex rounded; petiole (1–) 4–15 mm, with pairs or clusters of spherical glands distally; largest medial blade amphistomatous, lorate, very narrowly elliptic, narrowly elliptic, or narrowly lanceolate to lanceolate, base convex, abaxial surface not glaucous, pilose, hairs white and ferruginous, straight or curved, (secondary-veins protruding abaxially, impressed adaxially). Catkins: staminate (stout), 24–50 × 8–15 mm, flowering branchlet 3–27 mm; pistillate moderately densely flowered, slender or stout, 30–63 (–70 in fruit) × 9–15 mm, flowering branchlet 10–30 mm; floral bract 2.8–4 mm. Staminate flowers: abaxial nectary (0–) 0.4–0.8 mm, adaxial nectary 0.3–0.6 mm, nectaries often distinct, sometimes connate and shallowly cupshaped. Pistillate flowers: (abaxial nectary rarely present, then nectaries distinct or connate and shallowly cupshaped), adaxial nectary 0.2–0.5 mm; stipe 0.8–4 mm; ovules 28–30 per ovary; styles 0.2–0.6 mm. 2n = 76.


Phenology: Flowering late May-late Jun.
Habitat: Riparian thickets, openings in woods, silty, sandy to gravelly alluvium, along streams, wet meadows, lakeshores
Elevation: 30-3100 m

Distribution

V7 39-distribution-map.gif

Alta., B.C., N.W.T., Sask., Yukon, Alaska, Calif., Colo., Idaho, Mont., Nev., Oreg., S.Dak., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

0 cm0 mm <br />0 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
pilose +  and not glaucous +
ovate +  and square +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
long-silky;pilose;long-silky;pilose;glabrous +
reddish turning yellow +  and yellow +
globose +, obovoid +, cylindrical +  and ellipsoid +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
George W. Argus +
(Nuttall) Sudworth +
Salix pentandra var. caudata +
tapering +
yellowish green +  and reddish +
ferruginous +  and white +
serrulate +  and entire +
glandular-dotted +
glabrous +, long-silky +  and villous +
toothed +  and 2-fid +
persistent +  and deciduous +
redbrown +, gray-brown +  and yellowbrown +
flexible +  and highly brittle +
pilose +  and glabrescent +
flowered +  and pistillate +
velvety +, villous +, pilose +  and glabrous +
subglobose +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
flowered +, pistillate +  and staminate +
3 cm30 mm <br />0.03 m <br /> (6.3 cm63 mm <br />0.063 m <br />) +
pendulous +, spreading +  and erect +
stout +  and slender +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Tail-leaf willow +
Alta. +, B.C. +, N.W.T. +, Sask. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
30-3100 m +
greenish +  and tawny +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
pistillate +  and staminate +
0 cm0 mm <br />0 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
bisexual +  and unisexual +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
spherical +
Riparian thickets, openings in woods, silty, sandy to gravelly alluvium, along streams, wet meadows, lakeshores +
white and ferruginous +
curved +  and straight +
wavy +  and crinkled +
unbranched +  and spicate +
subterminal +  and axillary +
membranaceous +
5.3 cm53 mm <br />0.053 m <br /> (17 cm170 mm <br />0.17 m <br />) +
narrowly lanceolate +  and lanceolate +
0.9 cm9 mm <br />0.009 m <br /> (3.1 cm31 mm <br />0.031 m <br />) +
arranged +  and alternate +
marcescent +
deciduous +
connate +  and distinct +
rudimentary +
2-7[-10]-carpellate +
pyriform +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
glandular-dotted +
pilose +  and glabrous +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering late May-late Jun. +
Bull. Torrey Bot. Club +
overlapping +
distinct +
branched +, sympodial +, monopodial +  and branching +
non-papillate +
cylindrical +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
caducous +  and persistent +
tapering +
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 +
ferruginous +  and white +
Salix lucida subsp. caudata +
Salix lasiandra var. caudata +
Salix lasiandra +
variety +
rounded +
sympodial +, branching +  and heterophyllous +
tree +  and shrub +