Ivesia is also a synonym for the Nesticus spider genus. Ivesia is a genus of flowering plants in the rose family known generally as mousetails. They are perennial herbs native to western North America, especially the western United States. Plants of this genus are sometimes treated as members of genus Potentilla. Species include: Ivesia aperta — Sierra Valley mousetail Ivesia argyrocoma — silverhair mousetail Ivesia arizonica — rock whitefeather Ivesia baileyi — Bailey's ivesia Ivesia callida — Tahquitz mousetail Ivesia campestris — field mousetail Ivesia cryptocaulis — Charleston Peak mousetail Ivesia gordonii — Gordon's ivesia Ivesia jaegeri — Jaeger's mousetail Ivesia kingii — King's mousetail Ivesia longibracteata — longbract mousetail Ivesia lycopodioides — clubmoss mousetail Ivesia muirii — granite mousetail Ivesia multifoliolata — manyleaf mousetail Ivesia paniculata — Ash Creek mousetail Ivesia patellifera — Kingston Mountain mousetail Ivesia pickeringii — silky mousetail Ivesia pityocharis — Pine Nut Mountain mousetail Ivesia pygmaea — dwarf mousetail Ivesia rhypara — grimy mousetail Ivesia sabulosa — intermountain mousetail Ivesia santolinoides — Sierra mousetail Ivesia saxosa — rock mousetail Ivesia sericoleuca — Plumas mousetail Ivesia shockleyi — sky mousetail Ivesia tweedyi — Tweedy's mousetail Ivesia unguiculata — Yosemite mousetail Ivesia utahensis — Utah mousetail Ivesia webberi — wire mousetail External links Jepson Manual Treatment Rosaceae genera