_interior_ Rowlee sandbar w. _nigra_ Marsh. black w. _rigida_ Muhl. (_S. cordata_ Muhl., not Michx.) heartleaf w. _Sambucus canadensis_ L. American elderberry _Sapindas drummondi_ H. & A. western soapberry _Sarcobatus vermiculatus_ (Hook.) Torr. greasewood _Sassafras albidum_ (Nutt.) Nees common sassafras _Sorbus aucuparia_ L. European mountainash _Staphylea trifolia_ L. American bladdernut _Symphoricarpos_ Duham. snowberry _occidentalis_ Hook. western s. _orbiculatus_ Moench buckbrush _Syringa vulgaris_ L. common lilac _Tamarix_ L. tamarisk _Tilia_ L. linden; basswood[49] _americana_ L. (including _T. palmeri_ Bush ex. F. C. Gates) American l. _europaea_ L. European l. _platyphyllos_ Scop. bigleaf l. _Ulmus_ L. elm _alata_ Michx. winged e. _americana_ L. American e. _carpinifolia_ Gleditsch. smoothleaf e. _parvifolia_ Jacq. Chinese e. _procera_ Salisb. English e. _pumila_ L. Siberian e. _rubra_ Muhl. (_U. fulva_ Michx.) slippery e. _thomasi_ Sarg. rock e. _Viburnum_ L. viburnum _prunifolium_ L. blackhaw v. _rufidulum_ Raf. rusty blackhaw v. _Vitis_ L. wild grape _Wisteria macrostachya_ Nutt. wisteria _Xanthoxylum americanum_ Mill. common pricklyash _Yucca glauca_ Nutt. small soapweed FOOTNOTES: [47] Hazel in many texts. [48] _R. radicans_ is an extremely variable species. [49] Basswood, a lumber trade name. LIST OF SPECIES NAMES IN COMMON USE AND THEIR ENGLISH MEANING