Salix bonplandiana

Kunth in A. von Humboldt et al.

in A. von Humboldt et al., Nov. Gen. Sp. 2(qto.): 24.

,

2(fol.): 20.

,

plates 101, 102. 1817.

Common names: Bonpland’s willow
Illustrated
Synonyms: Salix bonplandiana var. toumeyi (Britton) C. K. Schneider
Treatment appears in FNA Volume 7. Treatment on page 33. Mentioned on page 29, 30, 31, 37.

Trees, 1–13 m. Stems: branches yellowbrown to redbrown, glabrous; branchlets yellowish, streaked with red or redbrown, glabrous or puberulent, nodes hairy. Leaves: (marcescent), stipules absent or rudimentary on early ones, foliaceous on late ones, apex rounded, convex, or acute; petiole (rarely with spherical glands distally), 4–16 mm, puberulent or pubescent to glabrescent adaxially; largest medial blade lorate to narrowly lanceolate, 58–155 × 7–27 mm, 4.5–10.7 times as long as wide, base cuneate to convex, margins serrulate to crenulate or entire, apex acuminate to acute, abaxial surface glabrous or glabrescent, hairs appressed, adaxial dull or slightly glossy, glabrous or pilose; proximal blade margins entire; juvenile blade glabrous, puberulent, pilose, or sparsely long-silky abaxially, hairs white. Catkins: (usually flowering throughout season and axillary, sessile), staminate 24–131 × 3–10 mm, flowering branchlet 0–12 mm; pistillate (densely to loosely flowered), 24–47 × 6–12 mm, flowering branchlet 0–10 mm; floral bract 0.6–2.2 mm, apex rounded to convex, irregularly toothed or entire, abaxially sparsely to moderately densely hairy proximally, hairs irregularly curly; pistillate bract persistent after flowering. Staminate flowers: abaxial nectary 0.2–0.6 mm, adaxial nectary oblong, square, or ovate, 0.2–0.6 mm, nectaries distinct or connate and cupshaped; stamens 3–7; filaments hairy basally; anthers 0.3–0.5 mm. Pistillate flowers: adaxial nectary square to oblong, 0.3–0.6 mm; stipe 0.4–2.4 mm; ovary pyriform to obturbinate, beak slightly bulged below or tapering to styles; ovules 8–18 per ovary; styles 0.2–0.3 mm; stigmas (sometimes slenderly cylindrical), 0.18–0.27–0.32 mm. Capsules 3–6 mm. 2n = 38.


Phenology: Flowering Feb–Apr and throughout year.
Habitat: Riparian forests, along streams, dry washes
Elevation: 700-2000 m

Distribution

V7 21-distribution-map.gif

Ariz., Mexico (Baja California), Mexico (Chiapas), Mexico (Chihuahua), Mexico (Distrito Federal), Mexico (Durango), Mexico (Guanajuato), Mexico (Guerrero), Mexico (Hidalgo), Mexico (Jalisco), Mexico (Michoacán), Mexico (Morelos), Mexico (Nuevo León), Mexico (Oaxaca), Mexico (Puebla), Mexico (Querétaro), Mexico (Sonora), Mexico (Tlaxcala), Mexico (Veracruz), Mexico (Zacatecas), Central America (Guatemala)

Discussion

Salix bonplandiana and S. laevigata are closely related and are sometimes treated as varieties (R. D. Dorn 1994). Their ranges overlap in Arizona and in northern Baja California, Mexico.

Selected References

None.

Lower Taxa

None.

"-0.32mm" is not declared as a valid unit of measurement for this property.

... more about "Salix bonplandiana"
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
glabrescent +  and glabrous +
square +  and oblong +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
glossy +  and dull +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
George W. Argus +
Kunth in A. von Humboldt et al. +
cuneate +  and convex +
ferruginous +  and white +
long-silky +, pilose +, puberulent +  and glabrous +
toothed +  and 2-fid +
persistent +
yellowbrown +  and redbrown +
pliable +  and brittle +
puberulent +  and glabrous +
slender +  and stout +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
pistillate +  and staminate +
2.4 cm24 mm <br />0.024 m <br /> (4.7 cm47 mm <br />0.047 m <br />) +
pendulous +, spreading +  and erect +
slender +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Bonpland’s willow +
Ariz. +, Mexico (Baja California) +, Mexico (Chiapas) +, Mexico (Chihuahua) +, Mexico (Distrito Federal) +, Mexico (Durango) +, Mexico (Guanajuato) +, Mexico (Guerrero) +, Mexico (Hidalgo) +, Mexico (Jalisco) +, Mexico (Michoacán) +, Mexico (Morelos) +, Mexico (Nuevo León) +, Mexico (Oaxaca) +, Mexico (Puebla) +, Mexico (Querétaro) +, Mexico (Sonora) +, Mexico (Tlaxcala) +, Mexico (Veracruz) +, Mexico (Zacatecas) +  and Central America (Guatemala) +
700-2000 m +
connate +  and distinct +
greenish +  and tawny +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
pistillate +  and staminate +
bisexual +  and unisexual +
spherical +
Riparian forests, along streams, dry washes +
unbranched +  and spicate +
subterminal +  and axillary +
membranaceous +
amphistomatous +  and hypostomatous +
linear +  and elliptic +
5.8 cm58 mm <br />0.058 m <br /> (15.5 cm155 mm <br />0.155 m <br />) +
lorate +  and narrowly lanceolate +
0.7 cm7 mm <br />0.007 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
arranged +  and alternate +
marcescent +
deciduous +
pubescent +  and glabrescent +
0.4 cm4 mm <br />0.004 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
serrulate +  and crenulate or entire +
connate +  and distinct +
rudimentary +
2-7[-10]-carpellate +
villous +  and glabrous +
pyriform +  and obturbinate +
glandular-dotted +
Flowering Feb–Apr and throughout year. +
in A. von Humboldt et al., Nov. Gen. Sp. +  and plates +
overlapping +
distinct +
Illustrated +
branched +, sympodial +, monopodial +  and branching +
non-papillate +
cylindrical +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
caducous +  and persistent +
distinct +  and connate +
tapering +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
persistent +  and deciduous +
ferruginous +  and white +
Salix bonplandiana var. toumeyi +
Salix bonplandiana +
Salix sect. Humboldtianae +
species +
rounded +
sympodial +, branching +  and heterophyllous +