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Salix setchelliana C. R. Ball
Life   Plantae   Dicotyledoneae   Salicaceae   Salix

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Salix setchelliana C.R. Ball
Setchell's willow

Image of Salix setchelliana

General Information
Symbol: SASE4
Group: Dicot
Family: Salicaceae
Duration: Perennial
Growth Habit : Shrub
Native Status : AK   N
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Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Salix thumbnails at the Plants Gallery

©Mary Clay Stensvold. Provided by Smithsonian Institution, Department of Botany . United States, AK, S.E. region, Yakutat, at outlet of Harlequin Lake. Usage Requirements .



Symbol Scientific Name
SAAL10 Salix aliena Flod.


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Dilleniidae
Order Salicales
Family Salicaceae – Willow family
Genus Salix L. – willow
Species Salix setchelliana C.R. Ball – Setchell's willow

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Alaska FAC

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Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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FNA Vol. 7 Page 29, 51, 61, 65 , 66 , 67, 89 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

27. Salix setchelliana C. R. Ball, Univ. Calif. Publ. Bot. 17: 410, plate 72. 1934.

Setchell's willow

Stems erect or semi-prostrate; branches gray-brown or red-brown, glabrous or woolly to glabrescent; branchlets reddish, densely woolly (hairs spreading). Leaves: stipules absent or rudimentary; petiole (shallowly grooved adaxially), 0-3 mm; largest medial blade narrowly oblong, narrowly elliptic, elliptic, oblanceolate, or obovate, 25-87 × 10-30 mm, 2-3.9 times as long as wide, base cuneate or convex, margins flat, entire or serrulate, apex rounded to convex, abaxial surface glabrous, adaxial dull, glabrous; proximal blade margins entire or serrulate; juvenile blade glabrous. Catkins (sometimes branched); staminate 12-27 × 6-10 mm, flowering branchlet 3-8 mm; pistillate densely flowered, stout or subglobose, 20-34 × 6-13 mm, flowering branchlet 5-19 mm; floral bract tawny or greenish, translucent, 2-3.6 mm, apex rounded or truncate, erose, sinuate, irregularly toothed, or entire, abaxially glabrous. Staminate flowers: abaxial nectary 0.4-0.8 mm, adaxial nectary narrowly oblong, oblong, or ovate, 0.6-1 mm, nectaries distinct, or connate and shallowly cup-shaped; filaments distinct, glabrous or hairy basally or on proximal 1/2; anthers long-cylindrical, 0.6-0.8 mm. Pistillate flowers: adaxial nectary oblong, 0.8-1.3 mm, equal to or longer than stipe; stipe 0-0.6 mm; ovary obclavate or ovoid, beak abruptly tapering to styles; ovules 16-23 per ovary; styles distinct, 0.3-0.4 mm; stigmas flat, abaxially non-papillate with pointed tip, or slenderly cylindrical, 0.32-0.47-0.6 mm. Capsules 3.6-10 mm. 2 n = 38.

Flowering late May-late Jun. Pioneer on sandy to gravelly beaches, bars along glacial streams, glacial moraine; 10-1100 m; B.C., Yukon; Alaska.

Salix setchelliana shares some unique characters with members of subg. Longifoliae and some Populus. It produces shoots from roots, the catkins are sometimes branched, and the leaves are isolateral, with hypodermis present on both sides of the blade (W. Buechler, pers. comm.). While it is possible that these characters evolved independently, it is more likely that they were derived from a common ancestor.

Salix setchelliana is a highly successful colonizer of temporary gravel bar habitats. This is made possible by rapid expansion of its clones by root shoots and its ability to become established in new locations by both seedlings and clonal fragments (D. A. Douglas 1989).


Salix setchelliana forms natural hybrids with S. niphoclada .

Updated: 2019-10-22 01:14:44 gmt
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