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Salix nummularia Andersson
Duo xian liu

Life   Plantae   Dicotyledoneae   Salicaceae   Salix

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Salix nummularia Andersson
barren ground willow

General Information
Symbol: SANU4
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   




Symbol Scientific Name
SANUT Salix nummularia Andersson ssp. tundricola (Schljak.) Á. Löve & D. Löve
SATU3 Salix tundricola Schljak.


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 nummularia Andersson – barren ground willow

Subordinate Taxa

This plant has no children

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Wetland Status

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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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Link to Flora of North America home
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FNA Vol. 7 Page 27, 62, 68 , 69 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

29. Salix nummularia Andersson in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 16(2): 298. 1868.

Coin-leaf willow

Salix nummularia subsp. tundricola (Schljakov) Á. Löve & D. Löve

Plants 0.01-0.03 m, (dwarf), forming clones by layering. Stems trailing; branches yellow-brown or red-brown, glabrous; branchlets yellow-brown or red-brown, pubescent, pilose, or glabrescent. Leaves: stipules absent or rudimentary; petiole 1.5-2 mm (glabrous or pubescent adaxially); largest medial blade (2 pairs of secondary veins arising at or close to base, arcing toward apex) broadly elliptic, subcircular, broadly ovate, or elliptic, 9-22(-30) × 7.5-14(-19) mm, 1.2-2 times as long as wide, base rounded, subcordate, cordate, or convex, margins flat or slightly revolute, entire or serrulate, apex convex, rounded, or retuse, abaxial surface glabrous, adaxial highly glossy, glabrous; proximal blade margins entire or serrulate; juvenile blade pilose or puberulent abaxially. Catkins: from lateral buds; staminate (3-8 flowers), 3.2-6.6 × 2-5.2 mm, flowering branchlet 0.8-4.6 mm; pistillate loosely flowered (3-5 flowers), shape indeterminate, 7.5-13 × 3-10 mm, flowering branchlet 0.5-10 mm; floral bract tawny, 0.6-1.4 mm, apex rounded or truncate, entire, abaxially glabrous or sparsely hairy. Staminate flowers: abaxial nectary (0.3-)0.5-0.7 mm, adaxial nectary narrowly oblong or oblong, 0.7-1.1 mm, nectaries distinct, or connate and cup-shaped; filaments distinct or connate less than 1/2 their lengths, glabrous; anthers ellipsoid, 0.4-0.5 mm. Pistillate flowers: abaxial nectary (0-)0.6-0.9 mm, adaxial nectary narrowly oblong or oblong, 0.6-1.4 mm, longer than stipe, nectaries connate and shallowly cup-shaped; stipe 0-0.7 mm; ovary pyriform, glabrous, beak slightly bulged below styles; ovules 8-10 per ovary; styles 0.2-1 mm; stigmas flat, abaxially non-papillate with rounded tip, or broadly cylindrical, 0.2-0.27-0.32 mm. Capsules 3.5-7.5 mm. 2 n = 38.

Flowering late Jun-early Aug (based on Russian collections). Exposed, relatively dry, stony, moss-lichen, and moss tundra, polygonal tundra, outcrops, marine sediments, sand dunes, restricted to snow-free areas, usually on acidic substrates; 0-1900 m; Alaska; Asia (China [Jilin], Chukotka, Japan [Hokkaido], North Korea, Russian Far East, arctic, e Siberia).

Salix nummularia occurs in Alaska on St. Paul Island.

Updated: 2019-11-19 17:58:16 gmt
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