Delaetia woutersiana cv. Thin Petals

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Since 4 Aug 2013

Delaetia woutersiana cv. Thin Petals (Backeb.)

Family: CACTACEAE

Accepted Scientific Name: Eriosyce taltalensis subs. paucicostata (F.Ritter) Katt.
Eriosyce (Cactac.) gen. revis. & ampl. (Succ. Pl. Res., 1) (Succ. Pl. Res., 1): 119 (1994)

Delaetia woutersiana cv. Thin Petals Photo by: Agócs György

Origin and Habitat: Garden origin.

Synonyms:

Delaetia woutersiana cv. Thin Petals (Backeb.)

See all synonyms of Eriosyce taltalensis

Description: Delaetia woutersianaSN|16083]]SN|16083]] cv. Thin Petas is an odd (monstrous) cultivars with very fine petals, cut into shreds. The flowers look quite different, but nice and bi-coloured, yellow and orange-red. Similar mutant having thin petals are found in other cactus species species (see: Astrophytum asterias cv. ShowaSN|29677]]SN|29677]] and Lobivia cv. Stern von LorschSN|16308]]SN|16308]]). This plants are sterile and are often grafted on stronger species, called the stock, that can be any number of different columnar cactus.
Stem: Roundish, grey-green, with finely dotted epidermis, apex often very wooly.
Ribs: About 13 strongly tuberculated.
Areoles: Large, round to somewhat elongated with white woolliness.
Spines: Dark-brown soon turning grey, thin bristly and slightly tortuous.
Flowers: Diurnal, radial, about 2 cm in diameter opening widely, yellow with orange/red throats. Petals long, very fine, shred-like, from narrow yellow bases; upper parts orange-red, edges entire, tips entire and pointed. Filaments yellow at bases, yellow above, anthers abortive. Style pink-orange with pink stigma lobes.
Blooming season: It may flower at any time during the warmer months of the year if adequate water is provided and each flower lasts for one or two days only.
Note: The name Delaetia woutersianaSN|16083]]SN|16083]] is not accepted by botanists that treat it as synonym of Eriosyce taltalensis subs. paucicostataSN|2363]]SN|2363]], but it still has a value for a collector because they identify plants with particular characters.

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Subspecies, varieties, forms and cultivars of plants belonging to the Eriosyce taltalensis group

Delaetia woutersiana Backeb.: has bristly more or less tortuous spines (= Eriosyce taltalensis subs. paucicostata). Distribution: Antofagasta?
Delaetia woutersiana cv. Thin Petals (Backeb.): is an odd (monstrous) cultivars with very fine petals, cut into shreds. The flowers look quite different, but nice and bi-coloured, yellow and orange-red.
Eriosyce cachytayensis hort.: Possibly a synonym of Eriosyce taltalensis, Erisyce paucicostata or Eriosyce neohankeana. Origin: Unknown.
Eriosyce eriocephala (Backeb.): It may be recognized for the long white hairs under the flowers (particularly conspicuous in mature flowering specimens).
Eriosyce intermedia (F.Ritter): Smaller form very similar, if not the same, to Eriosyce taltalensis var. pygmaea. Distribution: Chañaral.
Eriosyce pulchella (Backeb.): Smaller form with white to pink flowers. It is not easily distingushable from Eriosyce taltalensis var. pygmaea. Distribution: Chañaral to Caldera.
Eriosyce taltalensis (Hutchison) Katt.: (subsp. taltalensis) it is a variable species that has straight spines, red, pink, cream, or white flowers, and comprises two varieties. var. taltalensis has red or cream flowers; var. pygmaea has white or pink flowers.
Eriosyce taltalensis subs. echinus (F.Ritter) Katt.: is a fiercely spined species, that has flowers white below, fuchsia red above, and comprises two varieties. var. echinus has stem tips with short wool; var. floccosa has stem tips with long tufts of wool.
Eriosyce taltalensis var. floccosa (F.Ritter) Katt.: has stem tips with long tufts of wool.
Eriosyce taltalensis subs. paucicostata (F.Ritter) Katt.: has grey-blue or grey-purple stems often cylindrical 6-8 cm in diameter and 15-30cm long with only 8-12 ribs. Flowers pale pink, cream-white or pale yellowish.
Eriosyce taltalensis subs. paucicostata f. viridis (F.Ritter): The “viridis” form has grass green bodies with 10-13 ribs (whereas the standard form generally has grey-blue-green or grey-purple tinged stems) .
Eriosyce taltalensis subs. pilispina (F.Ritter) Katt.: has twisted spines and white flowers.
Eriosyce taltalensis var. pygmaea (F.Ritter) Katt.: has smaller stems and distinctive pale white to pink flowers. Distribution: North of Chañaral.

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Cultivation and Propagation: It is a summer grower species that offers no cultivation difficulties, but it is slow growing.
Fertilization: Feed with a high potassium fertilizer in summer.
Moisture: Water regularly in summer (but do not overwater), keep dry as soon as the temperature starts dropping in October and keep it perfectly dry in winter at temperatures from 5 to 15 degrees centigrade.
Exposure: Need a bright exposure, full sun or half shade in summer.
Propagation: Grafting (usually used to speed the discouraging slow growing rate of this plant), cutting.

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Cite this page: "Delaetia woutersiana cv. Thin Petals" Text available under a CC-BY-SA Creative Commons Attribution License. www.llifle.com 14 Nov. 2005. 05 May 2025. </Encyclopedia/CACTI/Family/Cactaceae/31289/Delaetia_woutersiana_cv._Thin_Petals>