Herbarium specimens Introduction Opuntia ficus-indica is a domesticated species. There are many cultivars. Most types are derived in...
Opuntia undulata 7484
Herbarium specimens Introduction Opuntia undulata Griffiths is synonymous with O. undosa Griffiths. Griffith reported that the plant was...
Opuntia toumeyi 7479
Herbarium specimen Introduction Opuntia touymeyi Rose is found in southern Arizona. Britton and Rose placed it in synonymy...
Opuntia arizonica 7468 (in habitat)
Herbarium specimen Introduction Opuntia arizonica Griffiths is best thought of as a smaller and spiny version of O....
Dr. David Griffiths (photographer) 8974
Opuntia chlorotica 7474
Herbarium specimens Introduction Opuntia chlorotica is often considered a stand alone species. However, because the plants integrade into...
Opuntia chavena 7462
Herbarium specimens (Opuntia hyptiacantha) Introduction Opuntia chavena Griffiths is a synonym of O. hyptiacantha F.A.C. Webber. Links O....
Opuntia gregoriana 7457
Herbarium specimen Introduction Opuntia gregoriana Griffiths is a synonym of O. engelmannii Engelmann. O. gregoriana-type plants have fewer...