Purple Urkle 37.5% ThcaPurple Urkle: The introduction of this medical marijuana strain can be dated back to late 1980s. This is a Californian strain which is often classified as classical strain. This is believed to be the phenotype of 'Granddaddy Purple'. However, this is most frequently referred to be the specific phenotype of 'Mendocino Purps'. This strain is identified by its purple nugs covered by longer orange hairs. Physically, Purple urkle is typical of an indica