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  Uebelmannia flavispina forma cristata CACTUSPEDIA       

 


Photo & © copyright by Jürgen Menzel
Uebelmannia flavispina forma cristata
 

Description: The standard Uebelmannia flavispina  is one of the most peculiar and rare cactus famous for its yellow bristly appearance with several ribs and closely-spaced areoles, but this beautiful crested form is extremely rare in cactus collection. The most striking feature is the golden spines it possesses, which serve to protect it from the harsh sun common to its native habitat. More precisely the dense yellow  benefit the plant by reducing sun exposure and by trapping a layer of air next to the cactus body. This helps to cool the plant in the summer and keep it warmer in the winter. .
Stem: Up to 12 cm in widths  very woolly in the apex. Plants in this genus always show woodiness in the lower stem as they age.
Ribs: Vertical, prominent
Areoles: Close set.
Central spines: 1 to 4 up to long 1.5 cm.
Flowers: Yellow and diurnal in late autumn, or spring.

Photo of conspecific taxa, varieties, forms and cultivars of plants belonging to the Uebelmannia pectinifera complex (This Taxon has lots of synonyms ( like many other cacti) with several controversial varieties and subspecies, and comprises a multitude of different forms, but where each form is linked to others by populations of plants with intermediate characteristics):

Family: Cactaceae (Cactus Family)


Scientific name:  Uebelmannia flavispina Buining & Brederoo
Place of publication: Succulenta (Netherlands) 52:9. 1973
forma cristata

Origin Garden origin (Nursery produced cultivar)

Conservation status: Listed in CITES appendix 1.

Etymology:  The subspecies name flavispina comes from the Latin for "yellow spines".

Synonyms:  

  • Uebelmannia pectinifera subsp. flavispina (Buining & Brederoo) P. J. Braun & Esteves
    Place of publication: Succulenta (Netherlands) 74:135. 1995
 


Cultivation:
Not easy; it has a large root and lives among rocks. This tropical cactus prefers loves warm, moist, humid conditions, and mist spraying is a must in summer. Water regularly during the growing season and use a very draining mineral potting substrate. At the onset of winter, do not water. Uebelmannias need heat all year round, and extra winter heat; minimum 10°C is best. Avoid any frost. Keep cool in summer. This plant proves to be root prone if kept too cold in winter. To help stop this, a good deep collar of pumice or lava grit is an excellent idea. It prefers a full sun position and possibly afternoon shade in summer. If you can place it so that this occurs, the plant will be much happier.

Propagation: By seeds. Germinating seeds can also be tricky.  But plants are often grafted making them easier to grow, particularly through the winter. If possible, using a rootstock that is hardier than the Uebelmannia is the ideal.

 

Photo gallery: Alphabetical listing of Cactus and Succulent pictures published in this site.

Photo gallery UEBELMANIA


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This old page has been moved! Click the link next on the right to enter the new Enciclopedia of Cacti. We hope you find this new site informative and useful.

The Encyclopedia of Cacti