Harlequin is a sativa-dominant strain known for producing equal ratios of CBD and THCA.

First bred by Mr. Green from the House of David Collective, the strain is a cross between three landrace strains, a Nepali Indica and two landrace strains from Thailand and Switzerland, which were then pollinated by a Colombian Gold male.

The strain was originally cultivated for making hash/concentrates, but rather than creating a resinous strain that was high in THC, the breeder ended up creating a strain that gained notoriety for its elevated CBD content.