Subspecies, varieties, forms and cultivars of plants belonging to the Eriosyce subgibbosa group

• Eriosyce subgibbosa (Haw.) Katt.: This is the form with more elongated stems, with 8 to 30 thin, acicular, radial spines per areole, spines often yellowish.
• Eriosyce subgibbosa var. castanea (F.Ritter) Katt.: It has thin short and acicular radial spines and globose stems that will sometimes offset. The flowers can get up to 6 cm long (the larger among the "subgibbosa" forms).
• Eriosyce subgibbosa subs. clavata (Söhrens ex K.Schum.) Katt.: It has from 11 to 13 thick radial spines per areole and slender stems.
• Eriosyce subgibbosa var. litoralis (F.Ritter) Katt.: It is very spiny and has from 30 to 40 hairlike radial spines per areole it grows in the rocks.
• Eriosyce subgibbosa var. nigrihorrida (Backeb. ex A.W.Hill) Katt.: has globose blackish-green body and stout straight spines which are pitch-black in the crown. The flowers are bi-coloured with carmine petal tips and yellowish-white throat. Distribution: South Coquimbo.
• Eriosyce subgibbosa f. rapifera (F.Ritter & Y.Itô): has a purple body with black spines and a swollen carrot like root. Distribution: la Serena and adjacent areas.
• Eriosyce subgibbosa var. vallenarensis (F.Ritter) Katt.: It has from 9 to 24 thin & straight radial spine per areole and slender stems.
• Eriosyce subgibbosa var. wagenknechtii (F.Ritter) Katt.: has fewer ribs and smaller flowers less tha 3 cm long. It has dark-grey or blackish spines. Distribution: la Serena and adjacent areas.
• Eriosyce subgibbosa var. wagenknechtii f. napina (F.Ritter): has a swollen carrot like root often much larger than the standard stem. Distribution: la Serena and adjacent areas.
• Neoporteria cachitaensis n.n., catalog name: Distribution: Cachita (East of Taltal), region 02 Antofagasta, Chile.
• Neoporteria clavata f. grandiflora F.Ritter: has larger flowers. Distribution: Coastal Chile (East of La Serena to West of Vicuña)
• Neoporteria clavata f. parviflora F.Ritter: has smaller flowers. Coastal Chile (Approx from Valparaiso to Maule)
• Neoporteria clavata f. procera F.Ritter: Has stouter dark recurved spines. Distribution: Cerro Grande, altitude 300-500 m.