Echinocereus knippelianus
Date: 2002 May 12
Echinocereus knippelianus and its subspecies are discussed in an article by Peter Berresford and Paul Hoxey in the British Cactus & Succulent Journal, March 1999.
This plant in my collection was grown from seed sown in 1998 and is
flowering for the first time with the plant body about 3cm in diameter.