Fred H. Brandt

Parodia magnifica is a species of flowering plant in the family Cactaceae, native to southern Brazil. One of several species called ball cactus, it is also called balloon cactus. It grows to 7–15 cm (3–6 in) tall by 45 cm (18 in) broad, with heavily ribbed, spherical to columnar, spiny and hairy stems, bearing pale yellow flowers in summer. Its natural habitat is cool, dry temperate grassland at elevations of up to 800 m (2,600 ft). Populations are sparse and fragmented, and it has been designated as "Endangered" by the IUCN Red List. In cultivation it must be kept above 10 °C (50 °F), so in

Weingartia arenacea, the arenaceous crown cactus, is a species of cactus native to central Bolivia. It has been renamed Weingartia arenacea. It has gained the Royal Horticultural Society's Award of Garden Merit.

Parodia schumanniana is a quite rare species of succulent plant in the family Cactaceae. The specific epithet schumanniana honors the cactus specialist Karl Moritz Schumann.

Parodia warasii is a cactus native to Brazil. Its small range is threatened by landslides.

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Weingartia mentosa, the crown cactus, is a species of cactus in the genus Weingartia, native to Bolivia. It has gained the Royal Horticultural Society's Award of Garden Merit.

Weingartia tiraquensis is a species of Weingartia found in Bolivia.

Weingartia cardenasiana is a species of Weingartia found in Bolivia.

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Weingartia cylindrica is a species of Weingartia found in Bolivia.

Weingartia canigueralii is a species of cactus in the genus Weingartia, native to Bolivia. It has gained the Royal Horticultural Society's Award of Garden Merit.

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Weingartia tarijensis is a species of Weingartia found in Bolivia.

Weingartia crispata is a species of flowering plant in the family Cactaceae, native to Bolivia. It was first described by Walter Rausch in 1970 as Sulcorebutia crispata.

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Weingartia steinbachii, called Steinbach's crown cactus, is a species of cactus in the genus Weingartia, native to Bolivia. It has gained the Royal Horticultural Society's Award of Garden Merit under the synonym Rebutia steinbachii.

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Weingartia taratensis is a species of flowering plant in the family Cactaceae, native to Bolivia. It was first described by Martín Cárdenas in 1964 as Rebutia taratensis.

Weingartia mizquensis is a species of flowering plant in the family Cactaceae, endemic to Bolivia. It was first described by Walter Rausch in 1970 as Sulcorebutia mizquensis.

Weingartia losenickyana is a species of flowering plant in the family Cactaceae, endemic to Bolivia. It was first described by Walter Rausch in 1970 as Sulcorebutia losenickyana.

Weingartia frankiana is a species of flowering plant in the family Cactaceae, endemic to Bolivia. It was first described by Walter Rausch in 1970 as Sulcorebutia frankiana.

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