Pilidium concavum (Desm.) Höhn. 1915

have host

• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Loropetalum chinense (R. Br.) Oliv. (Chinese fringe flower)
• Global Biotic Interactions: Carya cordiformis (Wangenh.) C. Koch (bitternut hickory)
• Global Biotic Interactions: Paeonia officinalis L. (Common Peony)
• Global Biotic Interactions: Rhus glabra L. (rocky mountain sumac)
• Global Biotic Interactions: Corylus americana Walter (American Hazel)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Carya cordiformis (Wangenh.) C. Koch (bitternut hickory)
• Global Biotic Interactions: Acer rubrum L. (Red Maple)
• Global Biotic Interactions: Lysimachia ciliata L. (fringed loosestrife)
• Global Biotic Interactions: Carya cordiformis (Wangenh.) C. Koch (bitternut hickory)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Nemophila aphylla (L.) Brummitt (smallflower baby blue eyes)
• Global Biotic Interactions: Corylus americana Walter (American Hazel)
• Global Biotic Interactions: Fragaria virginiana Duchesne (Virginia strawberry)
• Global Biotic Interactions: Vitis riparia Michx. (River-Bank Grape)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Rubus pubescens Raf. (dwarf red blackberry)
• Global Biotic Interactions: Vitis riparia Michx. (River-Bank Grape)
• Global Biotic Interactions: Nemophila aphylla (L.) Brummitt (smallflower baby blue eyes)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Vitis riparia Michx. (River-Bank Grape)
• Global Biotic Interactions: Lysimachia ciliata L. (fringed loosestrife)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Oenothera biennis L. (common evening primrose)
• Global Biotic Interactions: Sequoia sempervirens (D. Don) Endl. (California Redwood)
• Global Biotic Interactions: Cotinus obovatus Raf. (American smoketree)
• Global Biotic Interactions: Oenothera biennis L. (common evening primrose)
• Global Biotic Interactions: Paeonia suffruticosa Andrews (moutan peony)
• Global Biotic Interactions: Oenothera biennis L. (common evening primrose)
• Global Biotic Interactions: Fragaria ananassa (Weston) Rozier (Garden strawberry)
• Global Biotic Interactions: Reynoutria japonica Houtt. (Japanese Knotweed)
• Global Biotic Interactions: Paeonia suffruticosa Andrews (moutan peony)
• Global Biotic Interactions: Reynoutria japonica Houtt. (Japanese Knotweed)
• Global Biotic Interactions: Fragaria ananassa (Weston) Rozier (Garden strawberry)
• Global Biotic Interactions: Quercus coccifera L. (Kermes Oak)
• Global Biotic Interactions: Epilobium rigidum Hausskn. (stiff willowherb)
• Global Biotic Interactions: Paeonia suffruticosa Andrews (moutan peony)
• Global Biotic Interactions: Chamaecyparis lawsoniana (A. Murray bis) Parl. (Lawson's Cypress)
• Global Biotic Interactions: Vitis vinifera L. (wine grape)
• Global Biotic Interactions: Quercus robur L. (English oak)
• Global Biotic Interactions: Reynoutria bohemica J. Chrtek & A. Chrtková ()
• Global Biotic Interactions: Olea europaea L. (olive tree)
• Global Biotic Interactions: Potentilla reptans L. (creeping cinquefoil)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)
• Global Biotic Interactions: Paeonia suffruticosa Andrews (moutan peony)
• Global Biotic Interactions: Bergenia crassifolia (L.) Fritsch (Siberian-tea)
• Global Biotic Interactions: Quercus rubra L. (Northern Red Oak)
• Global Biotic Interactions: Quercus agrifolia Née (California Live Oak)