Thelocactus conotheloswas first described byEduard von Regeland Eduard Klein in 1860 asEchinocactus conothelos . In 1936,Frederik Marcus Knuthreclassified it asThelocactus .
Thelocactus conothelos(Regel & E.Klein bis ) F.M.Knuth
Echinocactus conothelos , Gymnocactus conothelos , Thelocactus conothelossubsp.conothelos , Torreycactus conothelos
In habitat, Matehuala, San Luis Potosí, Mexico. Derivative of a photo byAd Konings. Licensed underCC BY-NC 4.0.
class : CactaceaeSubfamily : CactoideaeTribe : CacteaeGenus : Thelocactus
The specific epithet " conothelos " ( articulate " kon - Buckeye State - THEL - group O " ) mean " throw conical teat " and refer to the conical eminence on the stem of this species .
Thelocactus conothelosis native toMexico . It come about in Nuevo León , Tamaulipas , and San Luis Potosí at elevation that range from 3,940 to 7,220 feet ( 1,200 to 2,200 m ) , where it grow in shrubland and limestone slopes . This coinage has foursubspecies , withThelocactus conothelossubsp.conothelosbeing plant in northeastern Mexico .
In habitat, Matehuala, San Luis Potosí, Mexico. Derivative of a photo byPedro Nájera Quezada. Licensed underCC BY-NC 4.0.
Thelocactus conothelosis a smallcactuswith asolitary , ovoid to short cylindrical stem covered with conicaltuberclesjoined into indistinct , spirally arranged ribs . The bow can originate up to 12 inches ( 30 cm ) tall and 6 inches ( 15 cm ) in diam . Theareolesare woolly , in particular during the jejune phase , and typically have a bun in the oven between 8 and 20 radial spines that can reach lengths of up to 0.8 column inch ( 2 cm ) and 2 to 4 central spines that can grow up to 2 inches ( 5 centimetre ) long . The stellate spine are grey-headed to ochre , while the central spines are generally ochre but may turn grayish with age .
From previous winter to early springtime , Thelocactus conothelosproduces funnel - shape efflorescence that range in color from livid to Battle of Magenta . They seem at the crest of the shank and can have a diam of up to 2.4 inches ( 6 cm ) . The fruits are globose , covered withscales , and contain black , pear - shaped germ . They can grow to about 0.6 inches ( 1.5 cm ) in diameter .
brightness level : Thelocactus conothelosthrives in full sun . When grown indoors , it performs best in a very sunny window .
In habitat, Tamaulipas, México. Derivative of a photo byLuis Humberto Velez H. Licensed underCC BY-NC 4.0.
Soil : practice a commercial ground mix specifically design for cacti , orcreate your ownto ensure good root aeration and drain .
Temperature : While this cactus can tolerate short periods of freezing temperatures , it is best not to expose this cactus to temperature much below 32 ° F ( 0 ° C ) , specially in mellow humidity . Thelocactus conothelosgrows good inUSDA Plant Hardiness Zones9a to 11b , with middling minimum wintertime temperatures ranging from 20 to 50 ° F ( -6.7 to 10 ° C ) .
lacrimation : Regularwateringis necessitate during the growing season . water supply deeply and allow the grease to dry out out entirely before watering again . halt watering during the winter when the plant goes dormant .
In habitat, Guadalcázar, San Luis Potosí, Mexico. Derivative of a photo byPedro Nájera Quezada. Licensed underCC BY-NC 4.0.
Fertilizing : Thelocactus conothelosbenefits fromfertilizingduring the growing time of year . expend a water - soluble fertilizer and forbear from feed during wintertime .
Repotting : This cactus should be repotted into a slightly larger pot with drainage hole every two or three years , preferably at the beginning of the farm time of year . However , if necessary , repotting can be done at any sentence of the year .
Propagation : SinceThelocactus conothelosrarely create offshoot , it is typically propagated from seeds . Sow seeds in belated spring or summer for the good results .
instruct more atHow to Grow and Care for Echinocactus .
Thelocactus conothelosis non - toxic to humankind or positron emission tomography . However , it has sharp backbone , so keep it away from pet and children .
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