Herbarium specimens Introduction Opuntia streptacantha Lem. is a Mexican species that forms a tree. It is one of...
![Opuntia streptacantha 4538](https://i0.wp.com/opuntiads.com/griffiths/wp-content/uploads/4538-streptacantha019-1x.jpg?resize=768%2C959&ssl=1)
Griffith's Glass Negatives, Another Great Opuntia Site
…opuntiads from the past
Herbarium specimens Introduction Opuntia streptacantha Lem. is a Mexican species that forms a tree. It is one of...
Herbarium specimens Introduction Opuntia streptacantha Lem. is a Mexican species that forms a tree. It is one of...
Herbarium specimen Introduction Opuntia sanguinocola Griffiths is a Texas species that may extend into northern Mexico. See the...
Herbarium Introduction Opuntia spinulifera Salm-Dyck is a Mexican species. Links O. spinulifera at Tropicos O. spinulifera at the...