How to get Larkspur Prime Blueprint in Warframe?

Larkspur Prime Blueprint is an item dropped from Void relics.
You can find the list of relics below, and click on the links to see how to get them.

Relics dropping Larkspur Prime Blueprint

• Lith X1 (Common)
• Axi S16 (Common)
• Lith T12 (Common) - Vaulted
• Meso B9 (Common) - Vaulted
• Meso H4 (Common) - Vaulted
• Meso K6 (Common) - Vaulted
• Meso M4 (Common) - Vaulted