Salix

Contains 6 accepted taxa overall.

Characteristics
Salix L.
SALICACEAE
WILLOW
View USF Herbarium specimens of this family
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Classification
MALPIGHIALES
Salix
Citation
SALIX Linnaeus, Sp. Pl. 1015. 1753, nom. cons.
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TYPE: Salix alba Linnaeus 1753, typ. cons.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Salix babylonica WEEPING WILLOW Not Native FACW (NWPL) OBL (DEP)
Salix caroliniana CAROLINA WILLOW; COASTALPLAIN WILLOW Native OBL (NWPL) OD (WAP) OBL (DEP)
Salix eriocephala MISSOURI RIVER WILLOW; HEART-LEAVED WILLOW Native Endangered-State FACW (NWPL) OBL (DEP)
Salix floridana FLORIDA WILLOW Native Endangered-State FACW (NWPL) OBL (DEP)
Salix humilis DWARF WILLOW; PRAIRIE WILLOW Native FACU (NWPL) OBL (DEP)
Salix nigra BLACK WILLOW Native OBL (NWPL) OBL (DEP)
[Family identification key]
1.  Leaf blade margin entire, undulate, to obscurely toothed near the apex
S. humilis
1.  Leaf blade margin regularly toothed
2
2.  Mature leaf blades oblong to broadly lanceolate, the tip acute to abruptly acuminate, 2.5-5 cm wide, 2.4-3 times longer than wide
S. floridana
2.  Mature leaf blades linear-lanceolate to lanceolate, the tip tapered-acue, 0.5-3.5 cm wide, 3-14 times longer than wide
3
3.  Shrub to 6 m, with several main stems; foliaceous stipules often present; leaf blade base rounded to subcordate, larger blades 2-3.5 cm wide
S. eriocephala
3.  Shrub or tree to 20 m, mostly with one to few trunks or main stems; foliaceous stipules present or absent; leaf blade base usually cuneate, acute, to obtuse, larger blades 0.5-2.5 cm wide
4
4.  Bud-scale margins connate; catkin 0.9-3.5 cm long, branchlet 0-6 mm long; stamens usually 2, sometimes 1; pistillate bracts persistent
S. babylonica
4.  Bud-scale margins distinct, overlapping; catkin 2.5-10 cm long, branchlet 4-35 mm long; stamens 3-7(-9); pistillate bracts deciduous after flowering
5
5.  Shrubs to trees to 10 m; largest medial blades: abaxial surface glaucous; pistillate bracts deciduous or persistent after flowering; pistillate stipe 1.3-5.3 mm long
S. caroliniana
5.  Trees to 20+ m; largest medial blades: abaxial surface not glaucous, occasionally thinly glaucous; pistillate bracts deciduous after flowering; pistillate stipe 0.5-1.5 mm long
S. nigra
Genus Synonyms
Synonym Full Citation Basionym Type
Amerina Amerina Rafinesque Alsogr. Amer. 15. 1838. TYPE: Salix pentandra Linnaeus Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.
Amerix Amerix Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Non designatus.
Argorips Argorips Rafinesque Alsogr. Amer. 13. 1838. TYPE: Salix alba Linnaeus Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.
Biggina Biggina Rafinesque Alsogr. Amer. 14. 1838. TYPE: Salix angustata Pursh Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.
Chalebus Chalebus Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Non designatus.
Chamitea Chamitea (Dumortier) A. Kerner, Verh. K.K. Zool.-Bot. Ges. Wien 10: 275. 1860. BASIONYM: Salix Linnaeus, sect. Chamitea Dumortier, Verh. Gesl. Wilgen 15. 1825. TYPE: Salix reticulata Linnaeus 1753. Lectotypified by Skvortsov, Trudy Bot. Inst. Akad. Nauk SSSR, Ser. 1, Fl. Sist. Vyss. Rast. 1968: 62-72. 1968. = Nectusion Rafinesque 1838, by lectotypification.
Diamarips Diamarips Rafinesque Alsogr. Amer. 15. 1838. TYPE: = Disynia Rafinesque 1817, by lectotypification.
Diplima Diplima Rafinesque Alsogr. Amer. 13. 1838. TYPE: Diplima chrysantha (Vahl) Rafinesque 1838. (Salix chrysantha Vahl 1792.) Lectotypified by G. S. Lim et al., Rhodora 115: 176. 2013.
Diplopia Diplopia Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Salix undulata Ehrhart 1791. Neotypified by Argus, Syst. Bot. Monogr. 52: 48. 1997.
Diplusion Diplusion Rafinesque Alsogr. Amer. 15. 1838. TYPE: = Diplopia Rafinesque 1817, by lectotypification.
Disynia Disynia Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Salix rubra Hudson 1762. Neotypified by Argus, Syst. Bot. Monogr. 52: 48. 1997.
Melanix Melanix Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Non designatus.
Nectolis Nectolis Rafinesque Alsogr. Amer. 15. 1838. TYPE: Salix vitellina Linnaeus Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.
Nectopix Nectopix Rafinesque Alsogr. Amer. 14. 1838. TYPE: Salix caprea Linnaeus Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.
Nectusion Nectusion Rafinesque Alsogr. Amer. 14. 1838. TYPE: Nectusion reticulata (Linnaeus) Rafinesque (Salix reticulata Linnaeus)
Nestylix Nestylix Rafinesque Alsogr. Amer. 15. 1838. TYPE: = Opodix Rafinesque 1817, by lectotypification.
Oisodix Oisodix Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Salix holosericea Willdenow 1806. Neotypified by Argus, Syst. Bot. Monogr. 52: 48. 1997.
Opodix Opodix Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Salix triandra Linnaeus 1753. Neotypified by Argus, Syst. Bot. Monogr. 52: 48. 1997.
Pleiarina Pleiarina Rafinesque Alsogr. Amer. 15. 1838. TYPE: Pleiarina humboldtiana (Willdenow) Rafinesque (Salix humboldtiana Willdenow)
Psatherips Psatherips Rafinesque Alsogr. Amer. 15. 1838. TYPE: Psatherips fragilis (Linnaeus) Rafinesque (Salix fragilis Linnaeus)
Ripselaxis Ripselaxis Rafinesque Alsogr. Amer. 14. 1838. TYPE: Ripselaxis herbacea (Linnaeus) Rafinesque (Salix herbacea Linnaeus)
Ripsoctis Ripsoctis Rafinesque Alsogr. Amer. 15. 1838. TYPE: Ripsoctis indica Rafinesque, nom. illegit. (Salix tetrasperma Roxburgh) Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.
Sokolofia Sokolofia Rafinesque Alsogr. Amer. 14. 1838. TYPE: Sokolofia rupestris (Donn ex Smith) Rafinesque (Salix rupestris Donn ex Smith)
Telesmia Telesmia Rafinesque Alsogr. Amer. 15. 1838. TYPE: Telesmia hermaphroditica (Linnaeus) Rafinesque (Salix hermaphroditica Linnaeus)
Toisusu Toisusu Kimura, Bot. Mag. (Tokyo) 42: 288. 1928. TYPE: Toisusu cardiophylla (Trautvetter ex C. A. Meyer) Kimura 1928. (Salix cardiophylla Trautvetter ex C. A. Meyer 1856.)
Urnectis Urnectis Rafinesque Alsogr. Amer. 14. 1838. TYPE: Urnectis hirta (Smith) Rafinesque (Salix hirta Smith)
Usionis Usionis Rafinesque Alsogr. Amer. 14. 1838. TYPE: Salix aquatica Seringe Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.
Vetrix Vetrix Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Salix purpurea Linnaeus 1753. Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.
Vimen Vimen Rafinesque, Amer. Monthly Mag. & Crit. Rev. 1: 439. 1817. TYPE: Salix repens Linnaeus 1753. Lectotypified by Argus, Syst. Bot. Monogr. 52: 49. 1997.