Parodia schumanniana

Parodia schumanniana is part of the cactus family, Cactaceae. Kew calls it a succulent, a plant that stores water. It also lists its growth form as a subshrub. Kew places the plant in the subtropical part of South America. Its native range runs from Brazil to part of Argentina. In Brazil, that range includes Rio Grande do Sul. In Argentina, it reaches the province of Misiones. The RHS also gives its range as Brazil to Argentina. The plant is not native to Britain or Ireland.

The RHS accepts the name Parodia schumanniana for this species. It also lists the name Notocactus schumannianus as a synonym. This means the two names refer to the same species. The older name can help when checking plant records. A record under that name may concern this same plant. The supplied material also covers named forms and subspecies. Those records do not describe the species as a whole. Their traits cannot show the size of the whole species. Nor can they show how all plants of this species look.

LLIFLE gives records for the species at a range of heights. These sites lie 984–2,297 feet [300–700 metres] above sea level. Those numbers describe the sites, not the height of the plants. Kew's record of its growth form supports calling it a succulent. The supplied records give no usual height for garden plants. They give no usual spread for plants grown in gardens, either. They also lack a full account of the plant's stems. The same gap applies to its flowers and its fruit.

The evidence does not set out light needs for the species. It does not set out soil or watering needs, either. The detailed care notes apply to a named form. They do not apply to the species as a whole. No supported frost limit or hardiness zone comes from these records. The records do not settle which parts, if any, people can eat. They do not settle whether the plant is toxic. Nor do they settle which pests or diseases affect it. These gaps do not mean the plant is safe to eat. A lack of safety facts does not mean it is harmless.