dcsimg
Image of Little River arrowhead
Creatures » » Plants » » Dicotyledons » » Water Plantain Family »

Little River Arrowhead

Sagittaria secundifolia Kral

Comments

provided by eFloras
The rhizomes of Sagittaria secundifolia grow in crevices of bedrock along the Little River in Alabama. During lower water periods, the plant flowers, with peduncles reaching the water surface, and flowers more or less floating on the water.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
Herbs, perennial, to 50 cm; rhizomes coarse; stolons absent; corms absent. Leaves mostly submersed, rarely emersed, sessile, phyllodial, flattened to lenticular, 5--30 ´ 0.2--0.5 cm. Inflorescences racemes, of 2--5 whorls, emersed, 1.5--8 ´ 1--7 cm; peduncles 1--2.5 cm; bracts connate more than or equal to ¼ total length, lanceolate, 0.5--1.5 mm, delicate, not papillose; fruiting pedicels spreading, cylindric, 0.6--2.5 cm. Flowers to 2.5 cm diam.; sepals recurved to spreading, not enclosing flower or fruiting head; filaments dilated, shorter than anthers, minutely tomentose; pistillate pedicellate, without ring of sterile stamens. Fruiting heads 0.5 cm diam; achenes obovoid-triangular, abaxially keeled, 2 ´ 1 mm, beaked; faces tuberculate, wings 1, scalloped or toothed, glands 0--1; beak lateral, incurved-erect, 0.3 mm.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Distribution

provided by eFloras
Ala.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Flowering/Fruiting

provided by eFloras
Flowering spring--fall.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Habitat

provided by eFloras
Riverine shoals and pools; of conservation concern; 300--400m.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Sagittaria secundifolia

provided by wikipedia EN

Sagittaria secundifolia (Kral's water plantain,[1] Little River arrowhead[2]) is an aquatic plant, growing on or below the water, on rocky creek beds and nearby slopes. It is found only along the Little River of Alabama,[3] and is endangered. It is often found in association with azaleas (Rhododendron spp), mountain laurel (Kalmia) and holly (Ilex). Perennial, aquatic herb with an underwater, thick horizontal root about 5–10 centimeters (2–4 in) long and 6 millimeters (0.25 in) thick. This particular species grows in the cracks in stream beds. Each leaf arches upward and is 5–10 centimeters (2–4 in) long with a pointed tip. Sagittaria secundifolia is found in the Little River drainage in DeKalb and Cherokee counties, the Town Creek drainage in DeKalb County, and in the West Sipsey Fork in Winston County in Alabama. .[4]

Both threatened and endangered species and poached species are critical resources to several parks. The last known population of Sagittaria secundifolia is in the Little River system (USFWS 1991), and the endangered green pitcher plant (Sarracenia oreophila) and harperella (Harperella nodosa) are also found there (LIRI). The Lookout Mountain (CHCH) population of the federally endangered mountain skullcap (Scutellaria montana) is listed as one of the last ten remaining population. The Tennessee coneflower (Echinacea tennesseensis) population at STRI is one of five remaining (USFWS 1989).[1]

Some of reasons why Sagittaria secundifolia is endangered is because of things like Erosion-related water quality degradation, silting and turbidity, resulting from development residential -recreational, surface mining, agriculture, and forest conversion. Another thing that causes the plantain to be endangered is water pollution from garbage dumping and leaking sewage systems. Water impoundments and off road vehicle traffic also causes great harm towards the species.[2]

References

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Sagittaria secundifolia: Brief Summary

provided by wikipedia EN

Sagittaria secundifolia (Kral's water plantain, Little River arrowhead) is an aquatic plant, growing on or below the water, on rocky creek beds and nearby slopes. It is found only along the Little River of Alabama, and is endangered. It is often found in association with azaleas (Rhododendron spp), mountain laurel (Kalmia) and holly (Ilex). Perennial, aquatic herb with an underwater, thick horizontal root about 5–10 centimeters (2–4 in) long and 6 millimeters (0.25 in) thick. This particular species grows in the cracks in stream beds. Each leaf arches upward and is 5–10 centimeters (2–4 in) long with a pointed tip. Sagittaria secundifolia is found in the Little River drainage in DeKalb and Cherokee counties, the Town Creek drainage in DeKalb County, and in the West Sipsey Fork in Winston County in Alabama. .

Both threatened and endangered species and poached species are critical resources to several parks. The last known population of Sagittaria secundifolia is in the Little River system (USFWS 1991), and the endangered green pitcher plant (Sarracenia oreophila) and harperella (Harperella nodosa) are also found there (LIRI). The Lookout Mountain (CHCH) population of the federally endangered mountain skullcap (Scutellaria montana) is listed as one of the last ten remaining population. The Tennessee coneflower (Echinacea tennesseensis) population at STRI is one of five remaining (USFWS 1989).

Some of reasons why Sagittaria secundifolia is endangered is because of things like Erosion-related water quality degradation, silting and turbidity, resulting from development residential -recreational, surface mining, agriculture, and forest conversion. Another thing that causes the plantain to be endangered is water pollution from garbage dumping and leaking sewage systems. Water impoundments and off road vehicle traffic also causes great harm towards the species.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN