Rebutia heliosa x albiflora 'Sunrise'

Rebutia heliosa x albiflora 'Sunrise'

 

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Rebutia heliosa

Description: Rebutia heliosa (Aylostera heliosa) is a small cactus with heads densely covered covered in brown areoles with white short pectinate spines, giving it a silvery appearance. This odd cactus is unmistakable and very distinctive. It is considered by many one of the nicest species.
Habit:It is essentially a miniature plant simple at first, that readily forms a clustering mound of tiny heads.
Stem: Heads compressed spherical to shortly cylindrical 2,5 cm wide, rarely higher than 3 cm or more.
Areoles: Small, brown and narrow, elongated 1-2 mm long, less than 0,5 mm broad, forming 35-40 spirals.
Spines: 24-26 all radials, short, about 1 mm long, distinctively silvery-white, dense, spreading laterally and pectinate, covering almost completely the small stems in a spiral pattern.
Roots: Fleshy tap root.
Flower: Large, funnel-shaped, long-necked, 4 cm in diameter, 4,5-5,5 cm long, orange-red. Tube up to 3 cm long 2-3 mm across, solid for more than half its length, deep rose to orange pink. Tepals orange with lilac mid-stripe.
Phenology: It flowers profusely in spring. (Rebutias are self-fertilizing but aylosteras are not, and the latter can be fooled by introducing foreign pollen and then re-pollinating with its own pollen.)
Fruit: 4 mm in diameter, deep crimson to purple.
Seeds: Hemispheric to helmet-shaped. black, papillate.

 

 

http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/5204/Rebutia_heliosa

albiflora 'Sunrise'

Rebutia heliosa cv. sunrise

Description: Rebutia cv. sunrise is a popular variety obtained by hybridization, specifically between Rebutia heliosa and Rebutia pulvinosa ssp. albiflora (syn: Aylostera albiflora). This cross resulted in a plant more vigorous than their parents, with stem tightly covered by appressed spines reminding of R. heliosa and lovely fresh pinky white flowers in masse that clearly are a feature inherited from R. pulvinosa ssp. albiflora. This is a really nice cultivar which is just stunning each year, a must for any collection.
Stems: Fattened, globular, light-green, up to 3 cm diameter and branching profusely from near the base.
Flowers: Funnel shaped ca. 3 cm in diameter often larger than the stems. Petals pink outside, pale yellow-orange inside (although at first glance they give the impression of having a creamy hue), so throughout the day, depending on the degree of opening of the flowers, the petals change the colour we perceive according to the intensity of light they receive. Flowers emerge from the base of the plant between the parent and offspring, resulting in a superb display in mid season.

 

http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/31285/Rebutia_heliosa_cv._sunrise