Frailea Britton & Rose (1922)

named after Manuel Fraile
globose to short cylindrical, dwarf, light green to reddish brown
tubercles in rows or as lowly ribs
spines mostly only a few, small, adjacent
blossoms yellow to brownish-red, cleistogamous, very seldom open, more frequent, if not under glass
seeds hat shaped, brown, get darker

Highslide JS


South Amerika - Brazil, Paraguay, Uruguay, Bolivia, Argentinia
steppes and mountains

Growth period

half shady and airy, temporarily without glass protection
the plants require a protection against full sun exposure,
especially seedlings and young plants
sufficiently and at great heat not to sparse watering,
standing moisture is absolutely to avoid
occasionally mist improves the growth
the blossom is only open, if the plants get temporary a full sunny location
and get very high temperatures (over 86F (30°C))

Winter period

bright and dry at 46–53°F (8–12°C)


sandy-mineralic with some of humus,
well permeable to water with addition of pumice and quartz gravel
Frailea asteroides Werdermann (1937)
Highslide JS
  Highslide JS   Highslide JS
Highslide JS   Highslide JS   Highslide JS


Rio Grande do Sul, near of Alegrete
at low sites to 1640 ft (500 m)


Astrophytum asterias similar Frailea
small, flat globular, 1.6 in (4 cm) high, about 1.8 in (4.5 cm) Ø, not branching,
dark reddish-brown or gray green
ribs 9–14, curved, below flat
areoles almost bare

7–11 spines, tiny, dark brown
flowers 1.6 in (4 cm) long, golden yellow to lemon yellow,

the outside is almost covered of brownish wool


Frailea asteroides hort. (s.a.) (nom. inval.)
Frailea castanea
ssp. castanea


Appendix II
Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available.