= Echinopsis densispina f. albolanata (Buining) Buining
Accepted Scientific Name: Echinopsis densispina Werderm.
Kakteenkunde 142, fig. 1934
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Lobivia densispina f. albolanata (Echinopsis densispina f. albolanata) Photo by: Valentino Vallicelli
Origin and Habitat: Santa Victoria to Quebrada del Toro, Salta, Argentina.
Synonyms:
See all synonyms of Echinopsis densispina
Description: Echinopsis densispinaSN|12452]]SN|12452]] f. albolanata (Lobivia albolanataSN|12465]]SN|12465]]) is a solitary or slowly branching white woolly form of Echinopsis densispinaSN|12452]]SN|12452]]. However the distinguishing soft white spines of Echinopsis densispinaSN|12452]]SN|12452]] f. albolanata, appear to fall within the natural variation of Echinopsis densispinaSN|12452]]SN|12452]] and it should be synonymized with the latter.
Stem: 3-6 cm in diameter, 4-10 cm tall, short columnar, somewhat woolly, especially near the crown of the plant. Epidermis glaucous-green to dark purplish red coloured in full sun.
Ribs: Not very prominent, vertical and shortly tuberculated.
Areoles: Fluffy white.
Radial spines: 12-20 or more, short up to 1 cm (usually less) very fine, flexible, whitish and almost pectinated.
Central spines: Usually absent, but occasionally 1 or 2 stronger and darker.
Roots:Fat tuberose tap root.
Flowers: Golden yellow. It's supposed to be free flowering but plant start flowering only when 4-5 years old.
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Subspecies, varieties, forms and cultivars of plants belonging to the Echinopsis densispina group
Echinopsis densispina Werderm.: Solitary or in clusters from a large tap root. The stem is dull green or brown-purplish-green, the spines are quite variable in form, length and number, forming a close network that shades and in many cases almost hides the body.
Echinopsis densispina f. albolanata cristata: Striking crested cactus that will soon form a white brain-like mound.
Echinopsis densispina f. albolanata (Buining) Buining: This is the white woolly form of Lobivia densispina It has approx 12-20 radial spines, short up to 1 cm (but usually less) very fine, flexible, whitish and almost pectinated. Central spines usually absent.
Echinopsis densispina f. aurantiaca (Wessner) Buining: has yellow or orngish flowers and tight pectinate spines, all radials.
Echinopsis densispina f. cristata "mauve type": Crested form with very dark mauve stems and tiny spines that forms a dense coating.
Echinopsis densispina f. cristata: Dark green to red-purple ribs with flat tubercles between which the areoles appear.
Echinopsis densispina var. pectinifera (Wessner) J.G.Lamb.: has short pectinated spines. Distribution: Tilcara, Jujuy, Argentina.
Echinopsis densispina f. sublimiflora (Backeb. ex Wessner) Buining: has diaphanous, pectinate spines, central spine blacker and pointing upwards. The beautiful flowers are very large for the size of plant, lustrous salmon-pink to carmine in colour.
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Bibliography: Major references and further lectures
1) Walther Haage “Cacti as House Plants” Studio Vista, 1965
2) Edward Anderson “The Cactus family” Timber Press, Incorporated, 2001
3) James Cullen, Sabina G. Knees, H. Suzanne Cubey "The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass" Cambridge University Press, 11/Aug/2011
4) David R Hunt; Nigel P Taylor; Graham Charles; International Cactaceae Systematics Group. "The New Cactus Lexicon" dh books, 2006
5) Curt Backeberg: “Die Cactaceae: Handbuch der Kakteenkunde” Volume V, Gustav Fischer Verlag, Stuttgart New York 1982–1985
6) Lowry, M. 2013. Echinopsis densispina. In: IUCN 2013. "IUCN Red List of Threatened Species." Version 2013.2. <www.iucnredlist.org>. Downloaded on 01 January 2014.
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Lobivia densispina f. albolanata (Echinopsis densispina f. albolanata) Photo by: Peiffer Clement
Lobivia densispina f. albolanata (Echinopsis densispina f. albolanata) Photo by: Valentino Vallicelli
Lobivia densispina f. albolanata (Echinopsis densispina f. albolanata) Photo by: Valentino Vallicelli
Lobivia densispina f. albolanata (Echinopsis densispina f. albolanata) Photo by: Valentino Vallicelli
It has white woolly hairs and strong tuberose root. (Echinopsis densispina f. albolanata) Photo by: Cactus Art
Lobivia densispina f. albolanata (Echinopsis densispina f. albolanata) Photo by: Valentino Vallicelli
Lobivia densispina f. albolanata (Echinopsis densispina f. albolanata) Photo by: Valentino Vallicelli
Lobivia densispina f. albolanata (Echinopsis densispina f. albolanata) Photo by: Cactus ArtCultivation and Propagation: It is a summer grower species that offers no cultivation difficulties. Lobivia albolanataSN|12465]]SN|12465]] has a fairly large tap root, and should be kept in a deep pot with a very draining mineral substrate. Water regularly in summer (but do not overwater ) keep dry in winter. Feed with a high potassium fertilizer in summer. Repot yearly until reaching about 100 mm in size, then every two or three years will suffice. Repotting is best done at the end of winter but can be done at other times. Do not water for a couple of weeks after repotting to reduce risk of root rot via broken roots. Repotting will increase size of stems. It is quite cold tolerant if kept dry (hardy to -5° C). Need a bright exposure, full sun or half shade in summer.
Propagation: Seed, grafting, cutting. (seldom produces offsets)
Your Photos
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by Valentino Vallicelli
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by Valentino Vallicelli
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by Cactus Art
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by Valentino Vallicelli
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by Prof. Ilham Alakbarov