Echinopsis
Read about Echinopsis in the Standard Cyclopedia of Horticulture
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Echinopsis (Greek, hedgehog-like). Cactacea: Sea-urchin Cactus. South American small condensed cacti. Stems spherical to ellipsoidal or rarely columnar: ribs prominent and usually sharp-angled: fls. usually long trumpet-shaped; ovary and tube covered with linear-lanceolate, cuspidate bracts which become longer toward the outer end of the tube, where they pass gradually into the outer petals, in their axils bearing long, silky, wavy hairs and usually a few rather rigid bristles.—This is a well-marked genus of about 18 species, although by some authors combined with Cereus. Cult. as for Echinocactus; see also Succulents. Only a few species of Echinopsis are grown in this country, although they are more easily grown and propagated than most of the United States species of cacti. The genus is well adapted for use as window plants.
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Echinopsis spachiana | ||||||||||||||||
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around 180, see text |
Echinopsis is a large genus of cacti native to South America, sometimes referred to as sea-urchin cactus or Easter lily cactus. One small species, E. chamaecereus, is known as the peanut cactus. The 128 species range from large and treelike types to small globose cacti. The name derives from echinos hedgehog or sea urchin, and opsis appearance, a reference to these plants' dense coverings of spines.
Echinopsis is distinguished from Echinocactus by the length of the flower tube, from Cereus by the form and size of their stems, and from both in the position on the stem occupied by the flowers. They are remarkable for the great size, length of tube, and beauty of their flowers, which, borne upon generally small and dumpy stems, appear much larger and more attractive than would be expected.
Distribution
The distribution of Echinopsis is similar to that of Echinocactus, species being found only in South America (Argentina, Chile, Bolivia, Peru, Brazil, Ecuador, Paraguay and Uruguay). They grow only in situations where the soil is sandy or gravelly, or on the sides of hills in the crevices of rocks.
Cultivation
The growing and resting seasons for Echinopsis are the same as for Echinocactus. Research by J. Smith (former Curator at the Royal Botanic Gardens, Kew) showed that species like the Chilean Echinopsis cristata and its Mexican relatives thrive if potted in light loam, with a little leaf mould and a few nodules of limestone. The limestone keeps the soil open; it is important that the soil should be well drained. In winter, water must be given very sparingly, and the atmosphere should be dry; the temperature need not exceed 10°C during the night, and in very cold weather it may be allowed to fall to 5°C, provided a higher temperature of 14°C is maintained during the day. In spring, the plants should receive the full influence of the increasing warmth of the sun; and during hot weather, they will be benefited by frequent spraying overhead, which should be done in the evening. The soil should never be saturated, as the soft fibrous roots will rot if kept wet for any length of time.
None of the species need to be grafted to grow freely and remain healthy, as the stems are all robust enough and of sufficient size to take care of themselves. The only danger is in keeping the plants too moist in winter, for although a little water now and again keeps the stems fresh and green, it deprives them of that rest which is essential to the development of their large, beautiful flowers in summer.
Taxonomy changes
Studies in the 1970s and 1980s resulted in several formerly separate genera being absorbed into Echinopsis:
- Acantholobivia Backeb.
- Acanthopetalus Y.Itô
- Andenea Fric (nom. inval.)
- Aureilobivia Fric (nom. inval.)
- Chamaecereus Britton & Rose
- Chamaelobivia Y.Itô (nom. inval.)
- Cinnabarinea Fric ex F.Ritter
- Echinolobivia Y.Itô (nom. inval.)
- Echinonyctanthus Lem.
- Furiolobivia Y.Itô (nom. inval.)
- Helianthocereus Backeb
- Heterolobivia Y.Itô (nom. inval.)
- Hymenorebulobivia Fric (nom. inval.)
- Hymenorebutia Fric ex Buining
- Leucostele Backeb.
- Lobirebutia Fric (nom. inval.)
- Lobivia Britton & Rose
- Lobiviopsis Fric (nom. inval.)
- Megalobivia Y.Itô (nom. inval.)
- Mesechinopsis Y.Itô
- Neolobivia Y.Itô
- Pilopsis Y.Itô (nom. inval.)
- Pseudolobivia (Backeb.) Backeb.
- Rebulobivia Fric (nom. inval.)
- Salpingolobivia Y.Itô
- Scoparebutia Fric & Kreuz. ex Buining
- Setiechinopsis (Backeb.) de Haas
- Soehrensia Backeb.
- Trichocereus (A.Berger) Riccob.
Some have proposed merging Rebutia as well.
The taxonomic changes have been criticised by K. Trout, in particular the inclusion of the genus Trichocereus, and the formation of a huge, complex new genus without an accompanying monograph. Some problems also arose due to namespace collision when this merger was made. Most notably, there had previously existed both Echinopsis bridgesii and Trichocereus bridgesii, which are very different plants. Echinopsis bridgesii is a short clumping cactus, whereas Trichocereus bridgesii is a tall columnar cactus similar to E. (or T.) pachanoi. Under the new classification, Trichocereus bridgesii is known as Echinopsis lageniformis. It should be pointed out that many people, still use the old Trichocereus classification, especially in ethnobotanical writings.
Species
- Note: some of the species listed below may be synonyms, subspecies, or varieties of others.
- Echinopsis adolfofriedrichii G. Moser
- Echinopsis amoenissima Werdermann
- Echinopsis ancistrophora Spegazzini
- Echinopsis angelesii (R. Kiesling) G. D. Rowley
- Echinopsis antezanae (Cárdenas) H. Friedrich & G. D. Rowley
- Echinopsis apiculata Linke
- Echinopsis arboricola (Kimnach) R. Mottram
- Echinopsis arebaloi Cárdenas
- Echinopsis atacamensis (Philippi) H. Friedrich & G.D. Rowley
- Echinopsis aurata Salm-Dyck
- Echinopsis aurea Britton & Rose
- Echinopsis backebergia Werdermann
- Echinopsis baldiana Spegazzini
- Echinopsis berlingii Y. Ito
- Echinopsis bertramiana (Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis bolligeriana Mächler & Helmut Walter
- Echinopsis bonnieae (Halda, Hogan & Janeba) Halda & Malina
- Echinopsis boyuibensis F. Ritter
- Echinopsis brasilensis A. V. Frič
- Echinopsis bridgesii Salm-Dyck (not to be confused with E. lageniformis, which is also known as Trichocereus bridgesii)
- Echinopsis bruchii (Britton & Rose) H. Friedrich & Glaetzle
- Echinopsis cabrerae (R. Kiesling) G. D. Rowley
- Echinopsis caineana (Cárdenas) D. R. Hunt
- Echinopsis cajasensis F. Ritter
- Echinopsis calliantholilacina Cárdenas
- Echinopsis callichroma Cárdenas
- Echinopsis calochlora K. Schumann
- Echinopsis camarguensis (Cárdenas) H. Friedrich & G. D. Rowley
- Echinopsis campylacantha Pfeiffer & Otto
- Echinopsis candicans (Salm-Dyck) F. A. C. Weber
- Echinopsis cardenasiana (Rausch) H. Friedrich
- Echinopsis caulescens (F. Ritter) M. Lowry
- Echinopsis cephalomacrostibas (Werdermann & Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis cerdana Cárdenas
- Echinopsis chalaensis (Rauh & Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis chamaecereus H. Friedrich & W. Glaetzle
- Echinopsis chereauniana Schlumb.
- Echinopsis chiloensis (Colla) H. Friedrich & G. D. Rowley
- Echinopsis chrysantha Werdermann
- Echinopsis chrysochete Werdermann
- Echinopsis cinnabarina (Hooker) Labouret
- Echinopsis clavata (F. Ritter) D. R. Hunt
- Echinopsis cochabambensis Backeberg
- Echinopsis colmariensis Hort.
- Echinopsis comarapana Cárdenas
- Echinopsis conaconensis (Cárdenas) H. Friedrich & G. D. Rowley
- Echinopsis coquimbana (Molina) H. Friedrich & G. D. Rowley
- Echinopsis coronata Cárdenas
- Echinopsis cotacajesii Cárdenas
- Echinopsis crassicaulis (R. Kiesling) H. Friedrich & Glaetzle
- Echinopsis cristata Salm-Dyck
- Echinopsis cuzcoensis (Britton & Rose) H. Friedrich & G. D. Rowley
- Echinopsis cylindracea (Backeberg) Friedrich
- Echinopsis decaisniana Walp.
- Echinopsis densispina Werdermann
- Echinopsis derenbergii A. V. Frič
- Echinopsis deserticola (Werdermann) H. Friedrich & G. D. Rowley
- Echinopsis escayachensis (Cárdenas) H. Friedrich & G. D. Rowley
- Echinopsis eyriesii Pfeiffer & Otto
- Echinopsis fabrisii (R.Kiesling) G. D. Rowley
- Echinopsis famatimensis (Spegazzini) Werdermann
- Echinopsis ferox (Britton & Rose) Backeberg
- Echinopsis formosa (Pfeiffer) Jacobi
- Echinopsis friedrichii G. D. Rowley
- Echinopsis gibbosa Pfeiffer
- Echinopsis gigantea Rud. Meyer
- Echinopsis gladispina Y. Ito
- Echinopsis glauca (F. Ritter) H. Friedrich & G. D. Rowley
- Echinopsis glaucina H. Friedrich & G. D. Rowley
- Echinopsis haematantha (Spegazzini) J. G. Lamb.
- Echinopsis hahniana (Backeberg) R. S. Wallace
- Echinopsis hamatispina Werdermann
- Echinopsis hammerschmidii Cárdenas
- Echinopsis hertrichiana (Backeberg) D. R. Hunt
- Echinopsis hossei Werdermann
- Echinopsis huascha (F. A. C. Weber) H. Friedrich & G. D. Rowley
- Echinopsis huotti Labour.
- Echinopsis hystrichoides F. Ritter
- Echinopsis ibicuatensis Cárdenas
- Echinopsis imperialis Hort.
- Echinopsis jajoiana Hort.
- Echinopsis jamessianus Hort.
- Echinopsis kladiwaiana Rausch
- Echinopsis klingleriana Cárdenas
- Echinopsis knotti Schlumberger
- Echinopsis knuthiana (Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis korethroides Werdermann
- Echinopsis lageniformis (Forst.) H. Friedrich & G. D. Rowley (formerly Trichocereus bridgesii)
- Echinopsis lamprochlora F. A. C. Weber
- Echinopsis lateritia Gürke
- Echinopsis leucantha Walpers
- Echinopsis litoralis (Joh.) H. Friedrich & G. D. Rowley
- Echinopsis lorethroides Werdermann
- Echinopsis macrodiscus Frič
- Echinopsis macrogona (S.D.) H. Friedrich & G. D. Rowley
- Echinopsis mamillosa Gürke
- Echinopsis marsoneri Werdermann
- Echinopsis mataranensis Cárdenas
- Echinopsis maximiliana Heyder
- Echinopsis melanacantha A. Dietr.
- Echinopsis meyeri Heese
- Echinopsis mieckleyi Rud. Meyer
- Echinopsis mihanovichii Frič & Gurcke
- Echinopsis minuana Spegazzini
- Echinopsis mirabilis Spegazzini
- Echinopsis misleyi J. Labouret
- Echinopsis molesta Spegazzini
- Echinopsis nigra Backeberg
- Echinopsis nigrispina Walp.
- Echinopsis nodosa Linke
- Echinopsis obrepanda (Salm-Dyck) K. Schum.
- Echinopsis octacantha Muehlenpf.
- Echinopsis oxygona Pfeiff. & Otto
- Echinopsis pachanoi (Britton & Rose) H. Friedrich & G. D. Rowley
- Echinopsis pampana (Britton & Rose) D. R. Hunt
- Echinopsis pectinata Fennel
- Echinopsis pelecygona Y. Ito
- Echinopsis pentlandii (W. J. Hooker) Salm-Dyck ex A. Dietrich
- Echinopsis peruviana (Britton & Rose) H. Friedrich & G. D. Rowley
- Echinopsis picta Walp.
- Echinopsis pojoensis Cárdenas
- Echinopsis pseudomammillosa Cárdenas
- Echinopsis pugionacantha Rose & F. Boedeker
- Echinopsis pulchella Zucc.
- Echinopsis quadratiumbonata (F. Ritter) D. R. Hunt
- Echinopsis reichenbachiana Pfeiff.
- Echinopsis rhodotricha K. Schumann
- Echinopsis riviere-de-caraltii Cárdenas
- Echinopsis robinsoniana Werdermann
- Echinopsis rubescens Backeberg
- Echinopsis salmiana F. A. C. Weber
- Echinopsis salpigophara A. C. Lemaire
- Echinopsis saltensis Spegazzini
- Echinopsis sanguiniflora (Backeberg) D. R. Hunt
- Echinopsis santaensis (Rauh & Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis schelhasii Pfeiff. & Otto
- Echinopsis schickendantzii F. A. C. Weber
- Echinopsis schieliana (Backeberg) D. R. Hunt
- Echinopsis schoenii (Rauh & Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis schreiteri (Castellanos) Werdermann
- Echinopsis scopa Carrière
- Echinopsis scopulicola (F. Ritter) R. Mottram
- Echinopsis setosa Linke
- Echinopsis silvestrii Spegazzini
- Echinopsis simplex Niedl
- Echinopsis skottsbergii (Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis smrziana Backeberg
- Echinopsis spachiana (A. C. Lemaire) H. Friedrich & G. D. Rowley
- Echinopsis spegazzinii K. Schumann
- Echinopsis sphacelata Gravis
- Echinopsis spinibarbis (Otto) A. E. Hoffmann
- Echinopsis strausii Graessn.
- Echinopsis strigosa (Salm-Dyck) H. Friedrich & G. D. Rowley
- Echinopsis subdenudata Cárdenas
- Echinopsis sucrensis Cárdenas
- Echinopsis tacaquirensis (Vaupel) H. Friedrich & G. D. Rowley
- Echinopsis tacuarembense J. Arechavaleta
- Echinopsis taratensis (Cárdenas) H. Friedrich & G. D. Rowley
- Echinopsis tarijensis (Vaupel) H. Friedrich & G. D. Rowley
- Echinopsis tarmaensis (Rauh & Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis tegeleriana (Backeberg) D. R. Hunt
- Echinopsis tephracantha Hort.
- Echinopsis terscheckii (A. A. Parmentier) H. Friedrich & G. D. Rowley
- Echinopsis thelegona (F. A. C. Weber) H. Friedrich & G. D. Rowley
- Echinopsis thelegonoides (Spegazzini) H. Friedrich & G. D. Rowley
- Echinopsis thionantha (Spegazzini) D. R. Hunt
- Echinopsis tiegeliana (Wessner) D. R. Hunt
- Echinopsis trichosa (Cárdenas) H. Friedrich & G. D. Rowley
- Echinopsis tricolor A. G. Dietrich
- Echinopsis tuberculata Niedt
- Echinopsis tubiflora J. G. Zuccarini
- Echinopsis tucumanensis Y. Ito
- Echinopsis tulhuayacensis (Ochoa) H. Friedrich & G. D. Rowley
- Echinopsis tunariensis (Cárdenas) H. Friedrich & G. D. Rowley
- Echinopsis uyupampensis (Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis vasquezii (Rausch) G. D. Rowley
- Echinopsis vatteri (R. Kiesling) G. D. Rowley
- Echinopsis verschaffeltii Hort.
- Echinopsis volliana (Backeberg) H. Friedrich & G. D. Rowley
- Echinopsis walteri (R. Kiesling) H. Friedrich & W. Glaetzle
- Echinopsis werdermannii Frič
- Echinopsis yuquina D. R. Hunt
- Echinopsis zuccarinii Pfeiff. & Otto
Many hybrids exist, mostly between similar species but also between more distinct ones, such as the cross between E. pachanoi and E. eyriesii which was sold under the name "Trichopsis pachaniesii" by Sacred Succulents.
References
- Edward F. Anderson, The Cactus Family (Timber Press, 2001) ISBN 0-88192-498-9, pp. 255-286
- K. Trout, Trout's Notes on San Pedro & related Trichocereus species (Sacred Cacti 3rd ed. Part B) (Moksha Press, 2005) ISBN 0-9770876-0-3
External links
- Cactiguide: Echinopsis
- Cactus Culture for Amateurs by W. Watson (1889)
- Desert Tropicals: Echinopsis
- Growing Trichocereus species (Plot55.com)
- IPNI
- Kuentz: Echinopsis (in French)
- Lohmueller: Echinopsis