The term 'Wild Rose' refers to a variety of flowering shrubs in the genus Rosa, which are native to Europe, Asia, and North America. The most common species of wild rose is EGLANTINE (Rosa eglanteria), which has nine letters. Another species of wild rose is BRIAR (Rosa rubiginosa), which has five letters. Finally, the species Toa (Rosa tomentosa) has three letters. All of these species of wild rose are known for their fragrant flowers and attractive foliage.