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Salix triandra L.
Salix triandra var hoffmaniana (Sm) HC Watson

Life   Plantae   Dicotyledoneae   Salicaceae   Salix

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Associates · map
FamilyScientific name @ source (records)
Botryosphaeriaceae  Botryosphaeria fuliginosa @ BPI (3)

Phyllosticta salicicola @ BPI (1)
Calosphaeriaceae  Calosphaeria myriocarpa @ BPI (1)
Dermateaceae  Gloeosporium salicis @ BPI (1)

Gloeosporium @ BPI (1)

Ocellaria aurea @ BPI (2)
Diaporthaceae  Diaporthe spina @ BPI (2)
Erysiphaceae  Uncinula salicis @ BPI (1)
Helotiaceae  Cenangium fuliginosum @ BPI (1)

Scleroderris fuliginosa @ BPI (2)
Melampsoraceae  Melampsora amygdalinae @ BPI (6)

Melampsora farinosa @ BPI (1)

Melampsora laricis-capraearum @ BPI (1)
Mycosphaerellaceae  Mycosphaerella punctiformis @ BPI (4)

Ramularia rosea @ BPI (3)

Septoria didyma @ BPI (1)

Septoria salicicola @ BPI (3)

Septoria salicis @ BPI (1)
Nectriaceae  Fusarium salicis @ BPI (1)

Nectria variicolor @ BPI (1)
Phaeosphaeriaceae  Leptosphaeria baggei @ BPI (2)
Polyporaceae  Fomes igniarius @ BPI (1)
Ulvaceae  Solenia poriaeformis @ BPI (1)
Valsaceae  Valsa salicina @ BPI (2)
Venturiaceae  Fusicladium saliciperdum @ BPI (1)

Venturia chlorospora @ BPI (1)
_  Darluca filum @ BPI (1)

Habrostictis ocellata @ BPI (1)

Uredo mixta @ BPI (1)

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Salix triandra L.
almond willow

General Information
Symbol: SATR14
Group: Dicot
Family: Salicaceae
Duration: Perennial
Growth Habit : Shrub
Native Status : CAN   I
Other Common Names: almond-leaf willow
French willow
Data Source and Documentation
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green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
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 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 triandra L. – almond willow

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont FACW
Midwest FACW
Northcentral & Northeast FACW

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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 | Family List | FNA Vol. 7 | Salicaceae | Salix

16. Salix triandra Linnaeus, Sp. Pl. 2: 1016. 1753.

Almond leaf willow

Salix amygdalina Linnaeus; S. amygdalina var. discolor Wimmer & Grabowski; S. triandra subsp. discolor (Wimmer & Grabowski) Arcangeli

Stems: branches glabrous or glabrescent; branchlets yellow-brown, red-brown, or brownish, usually glabrous, rarely pilose. Leaves: stipules rudimentary to foliaceous on early ones (absent on proximal ones); petiole deeply grooved adaxially, margins covering groove, 4-26 mm, pubescent or puberulent to glabrescent adaxially; largest medial blade oblong, narrowly oblong, narrowly elliptic, elliptic, or lanceolate to obovate, 53-114 × 14-35 mm, 2.7-6.3 times as long as wide, base convex or cuneate, margins flat or slightly revolute, crenate or serrulate, apex acuminate, acute, or ± caudate, abaxial surface glabrous or glabrescent, adaxial dull or slightly glossy, glabrous or glabrescent; proximal blade margins crenate or crenulate; juvenile blade reddish. Catkins: staminate 20-60 × 5.5-10 mm, flowering branchlet 3-17 mm; pistillate moderately to very densely flowered, slender to stout, 20-60 × 5-8 mm, flowering branchlet 5-31 mm; floral bract 1-2.3 mm, apex rounded or acute, abaxially hairy (mainly proximally), hairs wavy. Staminate flowers: abaxial nectary 0.2-1.1 mm, adaxial nectary oblong, square, or ovate, 0.2-0.6 mm, distinct; filaments distinct, hairy on proximal 1/2; anthers ellipsoid. Pistillate flowers: adaxial nectary obovate to square, 0.3-0.5 mm; ovary pyriform, beak gradually tapering to or slightly bulged below styles; ovules 30-36 per ovary; styles distinct 1/2 their lengths, 0.2-0.3 mm; stigmas flat, abaxially non-papillate with rounded tip, 0.1-0.2 mm. Capsules 3-6 mm. 2 n = 38 (44), 57, or 88.

Flowering late spring. Stream banks, waste places; 10-40 m; introduced; N.S., Ont.; D.C., Maine, Ohio, Va.; Eurasia.

Salix triandra usually has been overlooked in North American floras. At one time, it was a very important basket willow and probably was introduced into North America for that purpose. Some authors treat the glaucous and nonglaucous forms as subspecies (F. Martini and P. Paiero 1988; K. H. Rechinger 1993); A. K. Skvortsov (1999) noted that, although the two have somewhat distinct ranges, both kinds occur throughout the species and sometimes can be found in the same population. His suggestion that genetic inheritance of this character should be studied has not been taken up. The species is characterized by bark that is dark gray, smooth, and flaking in large irregular patches, as in Platanus × acerifolia . The ovary-style transition is so indistinct that styles are often described as absent, but there are two, distinct styles, each terminating in a short stigma. A color change, later in the season, between the styles and ovary suggests that the tip of the ovary and the two distinct styles are both stylar tissues. In general, it appears that the styles are connate proximally and distinct distally.

Collections of Salix triandra made in 1934-35 by H. Hyland along the Penobscot River, Orono, Maine, were labeled by him as "introduced," but they could have spread from cultivation or have been naturalized (A. Haines, pers. comm.). Recent naturalized occurrences are known from Toronto, Ontario, and Wolfville, Nova Scotia. Specimens identified as S. triandra by C. R. Ball are from Virginia and the District of Columbia. Salix triandra is reported to occur in Ohio (T. D. Sydnor and W. F. Cowen 2000) but voucher specimens were not found.

Updated: 2019-11-20 11:56:39 gmt
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