Rhos Blaen Carrog

{{Short description|Protected area in Ceredigion, Wales}}

{{Use dmy dates|date=April 2022}}

{{Infobox SSSI

|name= Rhos Blaen Carrog

|image=

|image_caption=

|aos= Ceredigion

|interest= Biological

|gridref={{gbmappingsmall|SN5759272518}}

|coordinates= {{coord|52.332214|-4.0913744|display=title,inline}}

|displaymap= Wales

|area= 1.73 ha

|notifydate=29 December 1982

|enref=

}}

Rhos Blaen Carrog is a Site of Special Scientific Interest in Ceredigion, west Wales, due to its population of Wavy St. John's Wort (Hypericum undulatum), an extremely rare variety of St. John's Wort.http://www.ccw.gov.uk/idoc.ashx?docid=5d7fb388-fea5-44b0-b28d-34e116fc92bb&version=-1{{dead link|date=April 2018 |bot=InternetArchiveBot |fix-attempted=yes }}