Sagittaria
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Read about Sagittaria in the Standard Cyclopedia of Horticulture
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Sagittaria (sagitta is Latin for arrow, referring to the arrow-shaped leaves). Alismaceae. Arrowhead. Perennial hardy herbs useful for foliage effects in bogs and shallow ponds and also for their white buttercup-like flowers. Plants of mostly erect habit, aquatic, the lvs. and scapes arising from more or less tuberous or knotted rootstocks: lvs. typically arrow-shaped, with long basal lobes, but sometimes long and linear: fls. imperfect, monoecious (staminate fls. usually in the uppermost whorls) or dioecious, with 3 white broad petals and 3 small greenish sepals, the stamens and pistils numerous, the latter ripening into small achenes; infl. composed of successive whorls of 3-stalked fls. Sometimes the lvs. are floating. The number of species admitted is variable, but Buchenau in the last treatment of the genus in Engler’s Das Pflanzenreich, hft. 16 (iv. 15, 1903) describes 31. Temperate and tropical regions of the world though lacking in Afr. and Austral. Sagittarias are mostly used for colonizing in the open, but S. montevidensis—now the most popular species—is grown in indoor aquaria or plunged in open ponds in the summer. The arrowheads are perennials of easy culture, although likely to be infested with aphis. Propagation is by division, or sometimes by seeds. S. macrophylla has appeared in trade-lists as "a variety with large foliage and tall lax spikes of white fls." Its botanical position is uncertain as there are two distinct things of this name, one a valid species, the other a large-lvd. form of S. sagittifolia.
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Species
- Sagittaria aginashi
- Sagittaria cuneata (Wapato, Arrowhead, Swamp Potato)
- Sagittaria fasciculata (Bunched Arrowhead)
- Sagittaria graminea (Grassy Arrowhead)
- Sagittaria lancifolia (Bulltongue Arrowhead)
- Sagittaria latifolia (Duck-potato, Broad Leaf Arrowhead)
- Sagittaria montevidensis (California Arrowhead)
- Sagittaria platyphylla (Delta Arrowhead, Delta Duck-potato)
- Sagittaria rigida (Canadian Arrowhead)
- Sagittaria sagittifolia L. (Arrowhead)
- Sagittaria subulata (Narrow-leaved Arrowhead)
- Sagittaria trifolia
Gallery
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Sagittaria. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Sagittaria QR Code (Size 50, 100, 200, 500)