Obregonia denegrii
Date: 1996 November 5
Location: Tamaulipas
Obregonia denegrii clearly thrives here, but many plants had been washed out of the ground by rain. Charlie Glass tells us that there have been washed out plants every time he has visited the site, and there is serious erosion. Interestingly, someone had made quite an extensive planting of Agave lechuguilla, the istle agave, apparently partly to increase the supply of fibres, but also undoubtedly to help fight the erosion.
Two plants of Obregonia denegrii,
A rare 7 cm high cactus that resembles an inverted green pine-cone with a wooly center, laying in the rocks. Has triangular tubercles arranged in overlapping spirals. Fall blooming, with pink flowers and a large taproot. Sacred to several Mexican Indians. Another type of "living rock" Cactus. Native to Tamaulipa, Mexico.
Will not tolerate cold nor will it graft well. Needs full Sun.
Contains: horenine (.002%), tyramine (.003%), N-methyltyramine (.0002%).