Opuntia microdasys ‘Alba’
White polka dot cactus
Kingdom | Plantae | Plants, but not fungi, lichens, or algae |
Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
Division | Magnoliophyta | Flowering plants, also known as angiosperms |
Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
Subclass | Caryophyllidae | Cacti, many other succulents, carnivorous plants, and leadworts |
Order | Caryophyllales | Includes cacti, carnations, amaranths, ice plants, and many carnivorous plants |
Family | Cactaceae | Succulent (water-storing) plants, often spiny |
Genus | Opuntia | Prickly pears |
Species | microdasys | From the Greek mikros, “small,” and dasys, “hairy, shaggy” |
Cultivar | ‘Alba’ | |
About plant names...
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Opuntia microdasys ‘Alba’ description by Thomas H. Kent, last updated 25 May 2020.
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4/6/2011 · Howard Peters Rawlings Conservatory & Botanic Gardens, Druid Hill Park, Baltimore, Maryland · ≈ 17 × 12″ (44 × 29 cm) 

4/6/2011 · Howard Peters Rawlings Conservatory & Botanic Gardens, Druid Hill Park, Baltimore, Maryland · ≈ 7 × 4½″ (17 × 11 cm) 
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