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Salicaceae
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Max Licher
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George W. Argus, James E. Eckenwalder, Robert W. Kiger in Flora of North America (vol. 7)
Shrubs or trees, heterophyllous or not, sometimes clonal, forming clones by root shoots, rhizomes, layering, or stem fragmentation; glabrous or glabrescent to pubescent; branching monopodial or sympodial. Stems erect to pendent; branched. Leaves persistent, deciduous or marcescent, alternate (opposite or subopposite in Salix purpurea), spirally arranged, simple; stipules present or not; petiole present; blade margins toothed or entire, sometimes glandular. Peduncles present or absent. Inflorescences racemose or spicate, usually catkins, unbranched, sometimes fasciculate or racemelike cymes, flowering before or as leaves emerge or year-round; floral bract (1) subtending each flower, displaced onto pedicel or distinct, scalelike, apex entire, toothed, or laciniate; bract subtending pistillate flower deciduous or persistent. Pedicels present or absent. Flowers usually unisexual, sometimes bisexual, usually staminate and pistillate on different plants; sepals present or absent, or perianth modified into 1 or 2 nectaries, or a non-nectariferous disc; stamens 1-60(-70); filaments distinct or connate basally, slender; anthers longitudinally dehiscent; ovary 1, 2-7[-10]-carpellate, 1-7[-10]-locular; placentation usually parietal, sometimes axile on intruded, fused placentae; ovules 1-25 per ovary; style 1 per carpel, distinct or connate; stigmas 2-4, truncate, notched-capitate, or 2- or 3-lobed. Fruits capsular, baccate, or drupaceous. Seeds sometimes surrounded by arillate coma of relatively long, silky hairs; endosperm scant or absent.
JANAS 26(1)
PLANT: Dioecious, deciduous trees and shrubs. LEAVES: alternate, simple, stipulate, usually serrate, the teeth tipped by minute glands, the stipules sometimes suppressed. INFLORESCENCE: bracteate catkins, the staminate falling after anthesis, the pistillate persisting until seed release. FLOWERS: without a perianth; stamens 2-80; pistils 2-4-carpelled, unilocular, the placentae parietal, the ovary superior. FRUITS: valvately dehiscent capsules. SEEDS: with long, cottony hairs. NOTES: 2-3 genera, over 500 spp., chiefly boreal and temperate, as pioneers in moist habitats of the N Hemisphere. REFERENCES: Eckenwalder, James E. 1992. Salicaceae. Ariz.-Nev. Acad. Sci. 26(1)2.
<< 101 - 150 taxa >>
Salix glauca
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Salix gooddingii
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Salix grayi
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Salix hastata
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Salix herbacea
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Salix hookeriana
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Salix humboldtiana
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Salix humilis
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Salix interior
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Salix irrorata
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Salix jepsonii
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Salix koriyanagi
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Salix laevigata
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Salix lanata
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Salix lasiandra
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Salix lasiolepis
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Salix lemmonii
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Salix ligulifolia
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Salix longipes
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Salix lucida
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Salix lutea
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Salix maccalliana
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Salix mackenzieana
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Salix melanopsis
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Salix monochroma
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Salix monticola
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Salix myricoides
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Salix myrsinifolia
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Salix myrsinites
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Salix myrtillifolia
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Salix myrtilloides
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Salix nigra
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Salix niphoclada
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Salix nivalis
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Salix nummularia
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Salix orestera
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Salix ovalifolia
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Salix peasei
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Salix pedicellaris
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Salix pellita
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Salix pendulina
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Salix pentandra
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Salix petiolaris
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Salix petrophila
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Salix phlebophylla
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Salix phylicifolia
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Salix planifolia
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Salix polaris
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Salix princeps-ourayi
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Salix prolixa
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NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.