Epiphyllum oxypetalum (DC.) Haw.
Dutchman’s pipe cactus, princess of the night, queen of the night
[An article has not been written yet.]
1/1/2011 · MacDonald-Zachos’, Milford, Pennsylvania · ≈ 9 × 14″ (23 × 35 cm) 
1/1/2011 · MacDonald-Zachos’, Milford, Pennsylvania · ≈ 17 × 12″ (44 × 29 cm) 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| 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 | Epiphyllum | From Greek ἐπί (epí), “upon””, and φύλλο (phúllo), “leaf,” referring to its flowers borne on leaflike phylloclades |
| Species | oxypetalum | From oxus, ”pointed,“ and petalum, ”petal“ for its pointed petals |
Epiphyllum oxypetalum description by Thomas H. Kent, not updated.
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