| 词条 | Gymnocalycium baldianum |
| 释义 |
|image = Gymnocalcium baldianium.jpg |status = LC |status_system = IUCN3.1 |status_ref = [1] |genus = Gymnocalycium |species = baldianum |authority = Speg., 1905 |synonyms =
}} Gymnocalycium baldianum, the spider-cactus or dwarf chin cactus, is a species of flowering plant in the cactus family Cactaceae, native to the Catamarca Province in Argentina. DescriptionIt is a globose cactus, spherical or a little flat, with a diameter up to 8 cm, dark green in colour, or sometimes brown. It has 8 to 10 ribs with tubercle-shaped areoles, covered in groups of 6 to 8 pale grey, curved spines, giving to the species its common name of spider-cactus. Like many cacti, it does not divide but may form offsets after some years. The funnel-shaped flowers reach a diameter of 6 cm, growing near the apex of the plant and are red, pink or orange.[2] CultivationGymnocalycium baldianum is easy to grow. It needs a well drained soil. In summer, water the plants well but let them to dry before watering again. Use monthly a fertilizer for cacti.[2] In winter, keep it dry and the temperature may be as low as {{convert|-10 |C|F|abbr=on}}, but it is better to keep it without frost. The exposure must be sunny in summer and at least brightly lit in winter. This species has gained the Royal Horticultural Society’s Award of Garden Merit.[3][4] References{{Commons|Gymnocalycium baldianum}}{{wikispecies|Gymnocalycium baldianum}}1. ^{{cite web | url=http://www.iucnredlist.org/details/152213/0 | title=Gymnocalycium baldianum | work=IUCN RedList | date=2013 | accessdate=28 February 2016}} {{Taxonbar|from=Q144882}}{{Cactus-stub}}2. ^1 {{cite web | url= http://www.cactus-art.biz/schede/GYMNOCALYCIUM/Gymnocalycium_baldianum/Gymnocalycium_baldianum/Gymnocalycium_baldianum.htm| title = 'Gymnocalycium baldianum | publisher = Cactus Art Nursery | accessdate = 3 March 2018}} 3. ^{{cite web | url= https://www.rhs.org.uk/Plants/106142/i-Gymnocalycium-baldianum-i/Details| title = RHS Plantfinder - Gymnocalycium baldianum | accessdate=3 March 2018}} 4. ^{{cite web | url= https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf | title = AGM Plants - Ornamental | date = July 2017 | page = 43 | publisher = Royal Horticultural Society | accessdate = 2 March 2018}} 7 : Gymnocalycium|Cacti of South America|Endemic flora of Argentina|Garden plants of South America|Least concern plants|Least concern biota of South America|Plants described in 1905 |
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