Dracaena angolensis
Template:Short description Template:Speciesbox
Dracaena angolensis (synonym Sansevieria cylindrica),[1] commonly known as African spear or the spear sansevieria,[2] is a succulent plant native to Angola in Southern Africa. For years, it was placed within the genus Sansevieria (snake-plants), a specific name which is still used synonymously by some; in the 21st century, Sansevieria became part of Dracaena (dragon-trees), after improved testing methods, physical comparisons, and other analyses found sufficient commonalities between the two genera to warrant subsumption.
The genus Dracaena is a part of the Asparagaceae (asparagus family)—i.e., they are closely aligned with and related to such groups as the Asparagus, Agave, Beaucarnea (ponytail "palms"), Chlorophytum (spider-plants), Camassia, Dasylirion (sotols), Hesperaloe (Texan or red yuccas) and Yucca (Joshua trees).
Description
Dracaena angolensis has striped, elongate, smooth, greenish-gray subcylindrical leaves. They are up to Script error: No such module "convert". diameter and grow up to Script error: No such module "convert". above soil.[3] The spear sansevieria grows fan-shaped, with its stiff leaves growing from a basal rosette.
The species is interesting in having subcylindrical instead of strap-shaped leaves caused by a failure to express genes which would cause the cylindrical bud to differentiate dorsoventrally or produce a distinctive and familiar top and bottom surface to the leaf blade.[3][4] The Script error: No such module "convert". greenish-white tubular flowers are tinged with pink.[4]
Cultivation
The species is drought-tolerant and in cultivation requires water only about once every other week during the growing season.[4] The species can be watered once a month during the winter months. The species was described by Wenceslas Bojer in 1837. Dracaena angolensis (under the synonym Sansevieria cylindrica) received its common name from a competition in a Dutch national newspaper.[3] It is popular as an ornamental plant[3] as it is easy to culture and take care of in a home if given bright sunlight and other required resources.[4] In Brazil, where it is known as lança de São Jorge ("St. George's spear"), it is grown outside houses to ward off evil that might harm the home.[5] The plant plays an important part in the Afro-Brazilian syncretic religion Umbanda,[5] representing the orisha Ogum,[6] as Ogum is syncretized with St. George.
Gallery of varieties and cultivars
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Blooming.
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Kind known as "var. patula"
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Cultivar 'Boncel'
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References
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- ↑ Script error: No such module "citation/CS1".
- ↑ Alfred Byrd Graf. Exotic House Plants Illustrated: All the Best in Indoor Plants. Roehrs Company, 1973. p. 171. Template:ISBN
- ↑ a b c d Script error: No such module "citation/CS1".
- ↑ a b c d Script error: No such module "citation/CS1".
- ↑ a b Aline Melo. "Espada de São Jorge, lança de São Jorge ou Espada de Santa Bárbara?" Casa e Jardim. 9 October 2020. Retrieved 10 February 2024. Template:Inlang "No Brasil, popularizou-se o uso de três espécies: a Sansevieria zeylanica, autêntica espada-de-são-jorge, verde e rajada; a Sansevieria trifasciata, com bordas amareladas da raiz às pontas, que ficou conhecida como espada-de-santa-bárbara; e a Sansevieria cylindrica, a lança-de-são-jorge, com aspecto pontudo e folhagens fechadas em formato cilíndrico."
- ↑ Heloísa Von Ah. "3 tipos de Espada-de-São-Jorge: conheça as principais diferenças." WeMystic. Date not given. Retrieved 10 February 2024. Template:Inlang
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