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Salix cascadensis Cockerell
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Salix cascadensis Cockerell
cascade willow

Image of Salix cascadensis

General Information
Symbol: SACA6
Group: Dicot
Family: Salicaceae
Duration: Perennial
Growth Habit : Shrub
Native Status : CAN   N
L48   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

Margaret Williams. Provided by Nevada Native Plant Society . ©Nevada Native Plant Society. Usage Requirements .

Margaret Williams. Provided by Nevada Native Plant Society . ©Nevada Native Plant Society. Usage Requirements .



Symbol Scientific Name
SABRT2 Salix brownii (Andersson) Bebb var. tenera (Andersson) M.E. Jones
SACAT3 Salix cascadensis Cockerell var. thompsonii Brayshaw
SATE6 Salix tenera Andersson


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 cascadensis Cockerell – cascade willow

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Arid West FACU
Western Mountains, Valleys, and Coast FACU

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Integrated Taxonomic Information System (SABRT2)
Integrated Taxonomic Information System (SACA6)
Integrated Taxonomic Information System (SACAT3)
Integrated Taxonomic Information System (SATE6)



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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Link to Flora of North America home
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FNA Vol. 7 Page 63, 79 , 82 , 83, 114, 115 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

43. Salix cascadensis Cockerell, Muhlenbergia. 3: 9. 1907.

Cascade willow

Salix tenera Andersson in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 16(2): 288. 1868, not A. Braun ex Unger 1850; S. cascadensis var. thompsonii Brayshaw

Plants 0.03-0.1 m, forming clones by rhizomes. Stems erect or trailing; branches yellow-brown or gray-brown, (sometimes weakly glaucous), glabrous; branchlets yellow-green or yellow-brown, glabrous or puberulent. Leaves (marcescent); stipules absent; petiole 1.5-5 mm; largest medial blade usually amphistomatous, narrowly elliptic or elliptic, 9-26 × 3.8-7.5 mm, 2.4-4.3 times as long as wide, base cuneate, margins flat, entire, ciliate, apex acute, acuminate, or convex, abaxial surface glabrous or pilose, hairs wavy, adaxial slightly glossy, glabrous or pilose; proximal blade margins entire; juvenile blade glabrous or sparsely villous abaxially. Catkins: staminate (20-50 flowers), 12.5-26.5 × 5.5-9 mm, flowering branchlet 1-11 mm; pistillate moderately densely to loosely flowered, (15-35(-43) flowers), stout or subglobose, 10-23(-30 in fruit) × 5-8 mm, flowering branchlet 2-9 mm; floral bract brown, 1.6-2.6 mm, apex rounded, entire, abaxially sparsely hairy or ciliate, hairs wavy or straight. Staminate flowers: abaxial nectary (0-)0.2-0.6 mm, adaxial nectary oblong or square, 0.4-1.2 mm, nectaries distinct; filaments distinct or basally connate; anthers ellipsoid, 0.3-0.6 mm. Pistillate flowers: adaxial nectary oblong or square, 0.5-1.2 mm, longer than stipe; stipe 0-0.6 m; ovary pyriform, usually densely villous, beak abruptly tapering to or slightly bulged below styles; ovules 6-10 per ovary; styles 0.3-1 mm; stigmas slenderly cylindrical, 0.28-0.39-0.56 mm. Capsules 3.5-5 mm.

Flowering early Jul-early Aug. Mesic to dry rocky slopes, ridges, high subalpine and alpine tundra; 2200-3900 m; B.C.; Colo., Utah, Wash., Wyo.

The morphological variability of Salix cascadensis is not well understood. Typically, it has leaves that are narrow, sharply pointed, and glaucous abaxially, catkins 15-43-flowered, dark brown floral bracts, and ovaries very densely hairy. Specimens with leaves not glaucous abaxially, catkins relatively few-flowered, and ovaries either sparsely hairy throughout, hairy only on beaks, or hairy in streaks, may be hybrids but the glabrous ovaried S. cascadensis var. thompsonii shows no obvious signs of hybridization.


Salix cascadensis is suspected to hybridize with S. barclayi .

Salix cascadensis × S. rotundifolia var. dodgeana resembles the former in its narrow, acute to acuminate leaves and the latter in leaves not glaucous abaxially, tawny floral bracts, relatively short catkins, and glabrous ovaries. The catkins are intermediate in being 6-7-flowered.

Updated: 2019-10-21 03:19:05 gmt
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