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Salix taxifolia Kunth
Life   Plantae   Dicotyledoneae   Salicaceae   Salix

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Salix taxifolia Kunth
yewleaf willow

General Information
Symbol: SATA
Group: Dicot
Family: Salicaceae
Duration: Perennial
Growth Habit : Tree
Native Status : L48   N
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Symbol Scientific Name
SAEX3 Salix exilifolia Dorn
SATAL Salix taxifolia Kunth var. lejocarpa Andersson
SATAL2 Salix taxifolia Kunth var. limitanea I.M. Johnst.
SATAS Salix taxifolia Kunth var. seriocarpa 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 taxifolia Kunth – yewleaf willow

Subordinate Taxa

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Wetland Status

Interpreting Wetland Status


SAEX3   Salix exilifolia Dorn

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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 52, 53, 54 , 60 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

17. Salix taxifolia Kunth in A. von Humboldt et al., Nov. Gen. Sp. 2(qto.): 22; 2(fol.): 18. 1817.

Yew-leaf willow

Salix exilifolia Dorn; S. taxifolia var. lejocarpa Andersson; S. taxifolia var. limitanea I. M. Johnston; S. taxifolia var. sericocarpa Andersson

Shrubs or trees, 2-16 m. Stems: branches red-brown, yellow-brown, or gray-brown, hairy or glabrous; branchlets yellow-brown, very densely long-silky, villous, or short-silky to glabrescent. Leaves: stipules absent or rudimentary; petiole (sometimes deeply grooved adaxially) 0.2-1.5 mm, long- to short-silky adaxially; largest medial blade linear, lorate, or narrowly oblanceolate, 13-42 × 1.1-4.4 mm, 5.8-24.6 times as long as wide, base cuneate, margins flat, usually entire, rarely remotely spinulose-serrulate, apex acute to acuminate (apiculate), abaxial surface glaucous or not (sometimes obscured by hairs), densely long-silky, or villous to glabrescent, hairs appressed, straight, adaxial slightly glossy or dull, moderately densely long- or short-silky to glabrescent; proximal blade margins entire; juvenile blade yellowish green (color obscured by hairs), very densely long-silky abaxially. Catkins: staminate 6.5-18 × 4-7 mm, flowering branchlet 1-38(-75) mm; pistillate moderately densely or loosely flowered, slender or stout, 6-16 × 4-7 mm, flowering branchlet 8-13(-120) mm; floral bract 1.3-2.8 mm, apex acute or convex, toothed or entire (glandular-dotted), abaxially hairy throughout or proximally, hairs straight. Staminate flowers: abaxial nectary 0.1-0.6 mm, adaxial nectary oblong or narrowly oblong, 0.5-1.1 mm, nectaries distinct; filaments hairy on proximal 1/2 or basally; anthers 0.4-0.7 mm. Pistillate flowers: adaxial nectary square, narrowly oblong, ovate, or oblong, 0.4-1.4 mm, longer than stipe; stipe 0-0.3 mm; ovary pyriform, long-silky or pilose, beak gradually tapering to or bulged below styles; ovules 16-26 per ovary; styles 0-0.3 mm; stigmas slenderly cylindrical, 0.4-0.6 mm. Capsules 3-6 mm.

Flowering throughout year, mostly early Mar-late Jun. Silty to sandy floodplains, gravelly arroyos, dry washes; 400-2000 m; Ariz., N.Mex., Tex.; Mexico (Baja California, Baja California Sur, Chiapas, Chihuahua, Coahuila, Sonora).

The name Salix taxifolia is used here in the sense of G. W. Argus and C. L. McJannet (1992). R. D. Dorn (1998) used that name instead for what Argus and McJannet called S. microphylla, and for the present species used S. exilifolia . Dorn did not cite specimens of S. exilifolia , but Texas plants, possibly annotated by him, were mapped by B. L. Turner et al. (2003). The distribution of S. taxifolia parallels that of S. thurberi Rowlee, recognized here and by Dorn as a distinct species.

Updated: 2019-10-24 00:40:15 gmt
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