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

• Eriosyce heinrichiana (Backeb.) Katt.: Stem dark brownish, round barely above ground level (rarely elongate). Flowers creamy yellow to reddish. Distribution: from south of Huasco to El Tofo.
• Eriosyce heinrichiana subs. intermedia (F.Ritter) Katt.: comprises two varieties. v. intermedia has stems occasionally elongate. Distribution: Elqui Valley. v. setosiflora does not have elongate stems. Distribution: coastal areas of the Elqui and Limari Valleys.
• Eriosyce heinrichiana var. setosiflora (F.Ritter) Katt.: (ssp. intermedia var. setosiflora) stems never elongate . Distribution: coastal areas of the Elqui and Limari Valleys.
• Eriosyce heinrichiana var. simulans (F.Ritter) Katt.: often has elongate stems with long white wool covering the stem tips. Distribution: lower Choros Valley.
• Pyrrhocactus chorosensis F.Ritter: mostly spineless. Distribution: Quebrada Choros, north of La Serena
• Pyrrhocactus deherdtianus (Backeb.) Katt.: is a compact slow growing forms with dark maroon/mauve stems and fewer tuberculate ribs. Distribution: El Trapiche and adjacent ares.
• Pyrrhocactus dimorphus F.Ritter: has two distinct stem forms, the juvenile form whit only minuscule radial spines, and the adult plant with long radial and central spines. Distribution: Chile (Coquimbo).