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Sagittaria montevidensis
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( Sagittaria montevidensis )
Sagittaria montevidensis
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About (Sagittaria montevidensis)
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Sagittaria montevidensis
is a species of flowering plant in the water-plantain family Alismataceae. Common names include giant arrowhead and California arrowhead.
Sagittaria montevidensis
is widespread in wetlands of North America (United States, Canada, Mexico) and South America (Brazil, Bolivia, Ecuador, Peru, Argentina, Chile, Paraguay, Uruguay). In North America, the distribution is disjunct, primarily in a wide area from West Virginia to Texas to South Dakota, but with isolated occurrences in New Brunswick, Maine, Connecticut, New York, New Jersey, California, Florida and Alabama It is reportedly naturalized in Spain, Tanzania, and the Island of Java in Indonesia. Habitat. It grows preferentially at the edges of ponds, in shallow and often only temporarily existing waters. Subspecies.
Sagittaria montevidensis
subsp. calycina (Engelm. ) Bogin (syn. Sagittaria calycina Engelm. ) - United States, Mexico
Sagittaria montevidensis
subsp. montevidensis - South America
Sagittaria montevidensis
subsp. spongiosa (syn. Sagittaria calycina var. spongiosa Engelm. , Lophotocarpus spongiosus (Engelm. ) J. G. Sm. ) - Mid-Atlantic and Northeastern United States, New Brunswick in Canada
Sagittaria montevidensis
is a robust, stemless, rhizomatous, aquatic plant. The young ribbon-like leaves grow submerged, while the leaves of older plants emerge above the water surface. The leaves are sagitatte and glabrous, up to 28 centimeters long and 23 centimeters wide. Its terete, spongy petioles may reach a length of more than 0. 75 m (2. 5 ft) and are up to 3 inches thick. Inflorescences are typically shorter than the leaves and decumbent. Flowers are in whorls or pairs at nodes and have a diameter of two to three centimeters. . They have three petals, each of which is white with a striking wine-colored stain, and three green sepals. The thick pedicels are as long as 5 cm (2. 0 in). Flowering occurs from June to September.
Plant Description
Plant Type
Perennial herb
Flower Color
White, Green
Wildlife Supported
Butterflies & moths hosted ( 1
likely
* )
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*
Cattail Border Moth
Bellura obliqua
Bellura obliqua
Landscaping Information
Nurseries
Carried by 1
Natural Setting
Climate
Annual Precipitation: 10.0" - 27.2", Summer Precipitation: 0.18" - 1.43", Coldest Month: 46.4" - 52.6", Hottest Month: 71.0" - 77.4", Humidity: 1.35" - 23.96", Elevation: -2" - 3343"
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Sagittaria montevidensis
Sources include:
Wikipedia
. All text shown in the "About" section of these pages is available under the
Creative Commons Attribution-ShareAlike License
. Plant observation data provided by the participants of the
California Consortia of Herbaria
, Sunset information provided by
Jepson Flora Project
. Propogation from seed information provided by the
Santa Barbara Botanical Garden
from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include
CalPhotos
,
Wikimedia Commons
, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include
Calflora
,
CNPS Manual of Vegetation Online
,
Jepson Flora Project
,
Las Pilitas
,
Theodore Payne
,
Tree of Life
,
The Xerces Society
, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from
PRISM Climate Group, Oregon State University
, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.
Links:
Jepson eFlora Taxon Page
CalPhotos
Wikipedia
Calflora
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