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Parodia aureispina is a compact plant
from Argentina that could develop up to seven golden-yellow flowers
simultaneously in early summer that remain open for about three
days.
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Cultivation: Needs regular water in
summer. Keep rather dry in winter, tends to lose its roots in winter.
Can tolerate light frost (-1C°)
Propagation: By Seeds. The seed of this plant are extremely small
and must be sown on the surface of the germination substrate (not
buried!!) But the seedlings after germination are so minuscule and
delicate that it is quite problematic to keep them alive. So for this
species it is usually used the
baggy germination technique (in a sterilized pot hermetically closed
in a plastic sachet)
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Globular shaped, this
miniature cactus
produces a profusion of yellow flowers. easy to grow and flowers
readily.
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Family:
Cactaceae (Cactus
Family) Parodia aureispina
Backeberg
In: Blätter für Kakteenforschung, 1934: 7, 1934
Accepted
Scientific name: Parodia microsperma (F. A. C.
Weber) Speg. 1923
Origin: Southern Bolivia, northern Argentina.
Conservation status: Listed in
CITES appendix 2.
Etymology: The
genus Parodia has been named after Lorenzo
Raimundo Parodi an Argentine botanist specialized in herbaceous
indigene flora. The species name "aureispina" comes
from Latin "aurum" = gold and "spina"= spine.
Common English Names include: Tom Thumb, Golden Tom
Thumb.
Some
Synonyms (This taxon has lots of synonyms whit several
controversial varieties and subspecies):
- Echinocactus
microspermus F.A.C.Weber 1896
- Parodia microsperma
(F.A.C.Weber) Speg. 1923
- Parodia aureispina
Backeb. 1934
- Parodia aureispina
Backeb. var. elegans Backeb.
In: Descriptiones cactacearum novarum, 1: 31, 1956
- Parodia aureispina
Backeb. var. mojotoroensis Wesk. In: Die
Gattung Parodia 2, p. 204-205, 1992
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Description:
Compact small to medium-sized cacti
densely covered in dense white and yellow spines. Usually
solitary, but can forms small clusters.
Stem:
Globose
or
cylindrical, light
green or bluish-green up to 6-7(-9) cm in
diameter and 10 cm tall (or more)
Ribs: 13-21 spiraling with conical
tubercles 4-5 mm in diameter 3 mm long.
Areoles: 1,5 mm in diameter with white-yellowish tomentum that
fade away as they age.
Radial spines: 11-13 thin,bristly, white, up to 7 mm long.
Central spines: 4, Short, hooked of which the upper three are
honey-yellow to reddish-brown with a reddish tip, while the lower one is
more long and strong.
Flowers: Bright yellow, infundibuliform on the plant apex 2,5 mm
long, 40 mm in diameter. External tepals spatulate or lanceolate,
denticulate yellowish-orange.The throat is yellow, the filaments bear
cream-yellowish anthers. Stile white-yellowish bearing a 12 lobed
stigma.
Blooming season: Produces several flowers simultaneously in early
summer (while at Parodia maassii they usually appear one
by one), the flowers remain open for about three days.
Fruit: Ovoidal 6x5 mm, with basal dehiscence.
Seeds: Very small 0,4mm long, brown smooth and shining.
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Photo of
conspecific taxa, varieties, forms and cultivars of
Parodia microsperma (This taxon has lots of
synonyms whit several controversial varieties and subspecies):
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Cultivation
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