Origin and Habitat: Namaqualand.
Habitat: Growing in a well drained soil with some water in winter and some sun.

• Conophytum christiansenianum L. Bolus

• Conophytum bilobum (Marloth) N.E.Br.
• Derenbergia biloba (Marloth) Schwantes
• Mesembryanthemum bilobum Marloth
• Conophytum absimile L. Bolus
• Conophytum absimile var. major L. Bolus
• Conophytum absimile f. majus L. Bolus
• Conophytum absimile f. umbrosum L. Bolus
• Conophytum aequale L. Bolus
• Conophytum albescens N.E.Br.
• Mesembryanthemum albescens (N.E.Br.) hort.
• Conophytum ampliatum L. Bolus
• Conophytum amplum L. Bolus
• Conophytum andausanum N.E.Br.
• Conophytum andausanum var. immaculatum L. Bolus
• Conophytum angustum L. Bolus
• Conophytum angustum N.E.Br.
• Conophytum anomalum L. Bolus
• Conophytum apiatum N.E.Br.
• Derenbergia apiata (N.E.Br.) Schwantes
• Mesembryanthemum apiatum N.E.Br.
• Conophytum apiculatum N.E.Br.
• Conophytum approximatum Lavis
• Conophytum auctum f. approximatum (Lavis) Rawé
• Conophytum asperulum L. Bolus
• Conophytum asperulum var. brevistylum L. Bolus
• Conophytum auctum N.E.Br.
• Conophytum australe L. Bolus
• Conophytum barkerae L. Bolus
• Conophytum beekenkampianum Tischer
• Conophytum brevisectum L. Bolus
• Conophytum cauliferum N.E.Br.
• Derenbergia caulifera (N.E.Br.) Schwantes
• Mesembryanthemum cauliferum (N.E.Br.) hort.
• Conophytum cauliferum var. lekkersingense L. Bolus
• Conophytum christiansenianum L. Bolus
• Conophytum citrinum L. Bolus
• Conophytum compressum N.E.Br.
• Conophytum conradii L. Bolus
• Conophytum convexum L. Bolus
• Conophytum cordatum Schick & Tischer
• Conophytum cordatum var. macrostigma L. Bolus
• Conophytum coriaceum L. Bolus
• Conophytum crassum L. Bolus
• Conophytum curtum L. Bolus
• Conophytum dennisii N.E.Br.
• Conophytum difforme L. Bolus
• Conophytum dilatatum Tischer
• Conophytum dissimile L. Bolus
• Conophytum distans L. Bolus
• Conophytum divaricatum N.E.Br.
• Conophytum diversum N.E.Br.
• Conophytum dolomiticum Tischer
• Conophytum ecarinatum L. Bolus
• Conophytum ecarinatum var. angustum L. Bolus
• Conophytum ecarinatum var. mutabile
• Conophytum excisum L. Bolus
• Conophytum exsertum N.E.Br.
• Conophytum furcatum N.E.Br.
• Conophytum geminum N.E.Br.
• Conophytum glaucum N.E.Br.
• Conophytum gonapense L. Bolus
• Conophytum gonapense var. numeesicum L. Bolus
• Conophytum grandiflorum L. Bolus
• Conophytum gregale N.E.Br.
• Conophytum igniflorum n.n.
• Conophytum inclusum L. Bolus
• Conophytum incurvum N.E.Br. & Tischer
• Conophytum incurvum var. leucanthum (Lavis) Tischer
• Conophytum indefinitum L. Bolus
• Conophytum insigne L. Bolus
• Conophytum klipbokbergense L. Bolus
• Conophytum kubusbergense Tischer
• Conophytum largum L. Bolus
• Conophytum latum L. Bolus
• Conophytum lavisianum L. Bolus
• Conophytum laxipetalum N.E.Br.
• Conophytum lekkersingense L. Bolus
• Conophytum leucanthum Lavis
• Conophytum leucanthum var. multipetalum L. Bolus
• Conophytum macrostigma (L. Bolus) Schwantes
• Conophytum markoetterae Schwantes
• Conophytum meyerae Schwantes
• Conophytum meyerae f. alatum Tischer
• Conophytum meyerae f. apiculatum (N.E.Br.) Tischer
• Conophytum meyerae f. asperulum (L. Bolus) H.Jacobsen
• Conophytum meyerae f. pole-evansii (N.E.Br.) Tischer
• Conophytum nelianum Schwantes
• Conophytum noisabisense L. Bolus
• Conophytum nutaboiense Tischer
• Conophytum obtusum N.E.Br.
• Conophytum obtusum var. amplum (L. Bolus) Rawé
• Conophytum ovatum L. Bolus
• Conophytum parvulum L. Bolus
• Conophytum philippii L. Bolus
• Conophytum piriforme L. Bolus
• Conophytum plenum N.E.Br.
• Conophytum pluriforme L. Bolus
• Conophytum pole-evansii N.E.Br.
• Conophytum proximum L. Bolus
• Conophytum proximum Schwantes
• Mesembryanthemum proximum N.E.Br.
• Conophytum recisum N.E.Br.
• Conophytum simile N.E.Br.
• Conophytum simplum N.E.Br.
• Conophytum sitzlerianum Schwantes
• Conophytum smithersii L. Bolus
• Conophytum sororium N.E.Br.
• Conophytum springbokense N.E.Br.
• Conophytum strictum L. Bolus
• Conophytum strictum var. inaequale L. Bolus
• Conophytum stylosum (N.E.Br.) Tischer
• Mesembryanthemum stylosum N.E.Br.
• Conophytum subacutum L. Bolus
• Conophytum subcylindricum L. Bolus
• Conophytum subtenue L. Bolus
• Conophytum supremum L. Bolus
• Conophytum tectum N.E.Br.
• Conophytum tumidum N.E.Br.
• Conophytum tumidum var. asperulum L. Bolus
• Conophytum umdausense L. Bolus
• Conophytum variabile L. Bolus
• Conophytum vlakmynense L. Bolus

• Conophytum bilobum subs. altum (L. Bolus) S.A.Hammer
• Conophytum altum L. Bolus
• Conophytum altum var. plenum L. Bolus
• Conophytum apertum Tischer
• Conophytum connatum L. Bolus
• Conophytum corniferum Schick & Tischer
• Conophytum durnale N.E.Br.
• Conophytum gracile N.E.Br.
• Conophytum gracile var. majusculum L. Bolus
• Conophytum graciliramosum L. Bolus
• Conophytum luiseae Schwantes
• Conophytum luiseae var. papillatum L. Bolus

• Conophytum bilobum var. elishae (N.E.Br.) S.A.Hammer
• Conophytum elishae N.E.Br.
• Derenbergia elishae (N.E.Br.) Schwantes
• Mesembryanthemum elishae N.E.Br.

• Conophytum bilobum subs. gracilistylum (L. Bolus) S.A.Hammer
• Conophytum gracilistylum N.E.Br.
• Derenbergia gracilistyla (L. Bolus) Schwantes
• Mesembryanthemum gracilistylum L. Bolus
• Conophytum chauviniae (Schwantes) S.A.Hammer
• Conophytum bilobum subs. gracilistylum f. chauviniae (Schwantes)
• Conophytum gracilistylum f. chauviniae (Schwantes)
• Derenbergia chauviniae (Schwantes) Schwantes
• Mesembryanthemum augeiforme Schwantes
• Mesembryanthemum chauviniae Schwantes

• Conophytum bilobum lacteum hort.
• Conophytum lacteum L. Bolus

• Conophytum bilobum var. linearilucidum (Lavis) S.A.Hammer
• Conophytum linearilucidum

• Conophytum bilobum var. muscosipapillatum (Lavis) S.A.Hammer
• Conophytum muscosipapillatum Lavis

Description: Conophytum christiansenianumSN|1166]]SN|1269]] is one of the varieties of Conophytum bilobumSN|1269]]SN|1166]] which is a somewhat variable taxon with several collected extreme forms that were early published as full species or as varieties, but these were too weak botanically to stand, so they are all combined in Conophytum bilobumSN|1166]]SN|1166]]. Conophytum christiansenianumSN|1166]]SN|1269]] is a robust caespitose plant, distinguished by larger bodies up to 7 cm tall, 3 cm wide, leaf-tips free, 10-40 mm long, triangular and keeled. It is stemless or short stems develop with time.
Bodies (paired leaves): Thickness: 3 centimetres Height: 7 centimetres.
Profile: The leaf-tips (lobes) are free and are 10-40 mm long and triangular in shape and keeled.
Colours: The margins are green to red or deep purple in colour. The epidermis is slightly velvety, it is whitish-green to glaucous-blue green
Flower: Scentless up to 3 cm (The largest of the genus)
Blooming season: The flowers are autumnal (rarely in summer) and diurnal.
Remarks: This plant is one of the innumerable form of Conophytum bilobumSN|1269]]SN|1166]] which is one of the most widespread and morphologically variable taxon.

Bibliography: Major references and further lectures
1) 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” Cambridge University Press, 11/Aug./2011
2) Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. “Red List of South African Plants.” Strelitzia 25. South African National Biodiversity Institute, Pretoria.
3) Hammer, S. 1993. “The Genus Conophytum - A Conograph.” Succulent Plant Publications, Pretoria.
4) Hammer, S. 2002. “Dumpling and His Wife: New Views of the Genus Conophytum.” East Anglia Engraving Creative Colour Ltd, Norwich, England.

Cultivation and Propagation: Conophytum quaesitumSN|25116]]SN|25116]] is a "winter" grower which is most active from late winter until later spring and heading for summer dormancy, but in favourable growing conditions it keeps going over the summer too and doesn't need particular care. It is relatively easy to grow.
Soil: Requires good drainage as it it is prone to root rot. It can grows outdoor in sunny, dry, rock crevices (protection against winter wet is required) It can also be cultivated in alpine house, in poor, drained soil.
Watering: It requires little water; otherwise its epidermis breaks (resulting in unsightly scars). Water minimally in summer, (only when the plant starts shrivelling), but it will generally grow even in summer if given water. Water regularly in winter after the previous year's leaves have dried up. Requires good drainage.
Fertilization: Feed it once during the growing season with a fertilizer specifically formulated for cactus succulents (poor in nitrogen), including all micro nutrients and trace elements diluted to ½ the strength recommended on the label. It thrives in poor soils and need a limited supplies of fertilizer to avoid the plants developing excess vegetation, which is easily attacked by fungal diseases.
Exposure: Keep cool and shaded in summer, it needs full sun or light shade.
Temperature: Hardy to -2°C. Ensure a very good ventilation.
Repotting: Avoid to repot frequently. This plant may stay in the same pot for many years.Uses: Container, rock garden.
Pests and diseases: It is vulnerable to mealybugs and rarely scale.
Propagation:: It can be reproduced both by cuttings and seeds. Take the cutting from a grown-up mother plant. Each cutting must contain one or more heads along with a fraction of root. It is easily propagated by seed.