Sagittaria L.
  • Sp. Pl. 2: 993. 1753. (1 May 1753)
  • Sagittaire [Latin sagitta, arrow]


This taxon is accepted by Alismataceae
Notes: More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0

General Description

2. Sagittaria L. N.v.: Corazón.

Lophotocarpus T. Durand

Por A. Lot H. y A. Novelo R.

Hierbas generalmente perennes, monoicas; tallos rizomatosos, estoloníferos, a veces cormoides. Hojas erectas, flotantes o sumergidas; láminas lineares, lanceoladas a elípticas. Inflorescencia racemosa o paniculada; escapos erectos, flotantes o sumergidos, cilíndricos a triangulares desde la base y comúnmente triangulares entre los verticilos. Brácteas libres o basalmente connatas. Flores generalmente unisexuales; flores estaminadas en los verticilos superiores y las pistiladas en los inferiores, estas últimas a veces rodeadas por una hilera de estambres funcionales o estaminodios; pedicelos de las flores estaminadas erectos, en las pistiladas y hermafroditas erectos o recurvados, engrosados o no en fruto. Sépalos reflexos en las flores estaminadas, en las pistiladas reflexos, adpresos o patentes; pétalos comúnmente del doble del largo de los sépalos, blancos o raramente coloreados; estambres numerosos, los filamentos lineares o dilatados en la base. Cabezuelas fructíferas globosas a obloides; aquenios obovoides a elípticos, generalmente acostillados, dorsal y ventralmente alados, con o sin glándulas; estilo persistente, reducido a muy desarrollado, desplazado hacia un lado del aquenio. Aprox. 35 spp. Cosmopolita.

Bibliografía: Rataj, K. Annot. Zool. Bot. 78: 1-61 (1972).

Herbs, aquatic, often stoloniferous and tuberiferous. Leaves aerial, floating, or submerged, linear, lanceolate, deeply cordate, or sagittate. Inflorescences usually of 3-flowered whorls each with 3 bracts. Flowers unisexual or polygamous, upper ones male, with longer and slender pedicels, lower ones female or bisexual, with shorter and thickened pedicel. Stamens (6-)9 to numerous. Carpels numerous, spirally arranged, each with 1 ovule; styles apical or subadaxial. Achenes laterally compressed, margins usually winged, with an apical or lateral stylar beak.

Plants perennial, rarely annual, submersed, floating-leaved, or emersed, glabrous to sparsely pubescent; rhizomes often present, occasionally terminated by tubers; stolons often present; corms absent; tubers white to brown, smooth. Roots septate. Leaves sessile or petiolate; petiole terete to triangular; blade with translucent markings absent, linear to obovate, base attenuate to hastate or sagittate, margins entire, apex round to acute. Inflorescences racemes, panicles, rarely umbels, of 1--17 whorls, erect, emersed or floating, rarely submersed; bracts coarse or delicate, apex obtuse to acute, smooth or papillose proximally to distally. Flowers unisexual, the proximal rarely with ring of sterile stamens; staminate flowers pedicellate, distal to pistillate flowers; pistillate flowers mostly pedicellate, rarely sessile; bracts subtending pedicels, lanceolate, shorter than pedicels, apex obtuse to acute; pedicels ascending to recurved; receptacle convex; sepals recurved in staminate flowers, recurved to erect in pistillate flowers, often sculptured, herbaceous to leathery; petals white, rarely with pink spot or tinge, entire; stamens 7--30; filaments linear to dilated, glabrous to pubescent; pistils to 1500 or more, spirally arranged, not radiating in starlike pattern, distinct; ovules 1; styles terminal. Fruits without longitudinal ribs, compressed, abaxially keeled or not, abaxial wings often present, lateral wing often present, 1, curved, glands present. x = 11.

SAGITTARIA L.; Lophotocarpus T. Durand

Hierbas perennes o raramente anuales, sumergidas, de hojas flotantes o emergentes, en aguas dulces o salobres; raíces septadas; tallos cortos, en forma de cormo, frecuentemente con rizomas, éstos ocasionalmente terminando en tubérculos lisos y de color café; plantas monoicas (en Nicaragua) o raramente dioicas. Hojas sumergidas, flotantes o emergentes, láminas presentes o ausentes, enteras, verde pálidas en Nicaragua, con o sin lobos basales y sin marcas pelúcidas; pecíolos teretes a triangulares o ausentes. Inflorescencia erecta y emergente o flotante o raramente inmersa, racemosa o paniculada, raramente umbeliforme, brácteas gruesas o delicadas, lisas a papilosas, obtusas a agudas; las flores estaminadas dispuestas arriba, las pistiladas abajo; flores pediceladas, unisexuales o raramente las inferiores perfectas, pedicelos alargándose después de la antesis, ascendentes a recurvados; sépalos herbáceos a coriáceos, persistentes, frecuentemente labrados, reflexos en las flores estaminadas, reflexos a aplicados en las pistiladas, verdes; pétalos blancos o raramente con una mancha o matiz rosado, deciduos; estambres 7–numerosos, libres, filamentos lineares a dilatados, glabros a pubescentes, anteras basifijas, lineares a orbiculares; pistilos numerosos, libres, arreglados en espiral, óvulo 1. Frutos aquenios numerosos, comprimidos, glandulosos, hasta con 3 alas; semilla 1.

Género con unas 20 especies principalmente distribuidas en el hemisferio occidental; 4 especies en Nicaragua.

C. Bogin. Revision of the genus Sagittaria (Alismataceae). Mem. New York Bot. Gard. 9: 179–233. 1955; K. Rataj. Revision of the genus Sagittaria. Part II. (The species of the West Indies, Central and South America). Annot. Zool. Bot. 78: 1–61. 1972.

Perennial, acaulescent, marsh or aquatic herbs with thickened fleshy rhizomes. Leaves erect or floating, sagittate or attenuated at the base, the submerged frequently without blades. Inflorescences simple or branched, bearing numerous whorls of 3 flowers, the lower usually pistillate and the upper usually staminate; sepals 3, green; petals 3, white.

Plantas perennes o a veces anuales, monoicas o rara vez dioicas, emergentes o varadas en riberas con már-genes húmedos, enraizadas, las raíces septadas; tallo corto, propagado por rizomas, los rizomas a veces termi-nados en tubérculos persistentes. Hojas basales, sumergidas, flotantes o frecuentemente emergentes, sésiles o(más frecuente) pecioladas; lámina linear o linear-lanceolada a ovada o elíptica, atenuada, sagitada, hastada oalgo cordada en la base, sin marcas pelúcidas. Infl. bisexual o unisexual, con 2–13 verticilos simples o ramifi-cados (rara vez umbeliforme), cada uno con (2)3 fls. Fls. unisexuales, las estaminadas en los verticilos superio-res y las pistiladas en los verticilos inferiores (en infls. bisexuales); sépalos 3, verdes; pétalos 3, blancos;estambres 7–20 ó más, las fls. pistiladas con o sin estambres estériles (o a veces con unos pocos fértiles); pis-tilos numerosos, las fls. estaminadas con o sin pistilos estériles. Cabeza frutal globosa a ligeramente más anchaque larga; aquenios lateralmente aplanados, la cara lateral lisa o con 1–pocas glándulas y/ó 1–3 alas (a vecesequinadas), el estilo persistente y que forma un pico.

"Fls unisexual (the plants monoecious or rarely dioecious) or some of them perfect; receptacle large, convex; sep 3, reflexed in fr or persistently erect or spreading; pet 3, deciduous, white; stamens 7–many; pistils numerous, aggregated into a subglobose head on a large receptacle, appearing to be spirally arranged; achenes flattened, winged at least on the margins; infl racemose, with 1–12 mostly 3-fld whorls, each whorl subtended by 3 bracts, occasionally with floriferous branches substituting for fls at the lowest whorl(s), or the fl solitary and terminal in depauperate plants; rooted annual or perennial aquatics, the infl and usually also the lvs emersed; rhizomes sometimes with apical tubers. The lvs are all basal, typically with an aerial, expanded, often sagittate blade on a petiole about as long as the water is deep. In deep or swiftly moving water, wholly submersed lvs are produced by some spp.; these often take the form of ribbon-like bladeless phyllodia (the flattened petioles). Similar short, stiff phyllodia are produced in tidal sites. 25+, cosmop., mainly New World. (Lophotocarpus)"

Literature

SELECTED REFERENCES

Beal, E. O., J. W. Wooten, and R. B. Kaul. 1982. Review of Sagittaria engelmanniana complex (Alismataceae) with environmental correlations. Syst. Bot. 7: 417--432. Bogin, C. 1955. Revision of the genus Sagittaria (Alismataceae). Mem. New York Bot. Gard. 9: 179--233. Rataj, K. 1972. Revision of the genus Sagittaria. Part II. (The species of West Indies, Central and South America). Annot. Zool. Bot. 78. Wooten, J. W. 1973. Taxonomy of seven species of Sagittaria from eastern North America. Brittonia 25: 64--74.

Common Names

NameLanguage
Sagittaire [Latin sagitta, arrow]

 Information From

Alismataceae
World Flora Online Data. 2017.
  • A CC0 1.0 Universal (CC0 1.0).
MBG Floras Images
http://www.tropicos.org/ImageSearch.aspx
Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
  • B Missouri Botanical Garden
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Hammel, B. E.; Grayum, M. H.; Herrera, C.; Zamora, N. Manual de Plantas de Costa Rica. Missouri Botanical Garden Press, 2003-2014
  • C Missouri Botanical Garden
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'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • D Missouri Botanical Garden
New York Botanical Garden
Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
  • E Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
Flora de Nicaragua
http://www.tropicos.org/projectwebportal.aspx?projectid=7&pagename=Home&langid=66
WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
  • F Missouri Botanical Garden
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  • G Missouri Botanical Garden
Flora de Panama
http://www.tropicos.org/Project/PAC
Robert E. Woodson, Jr. and Robert W. Schery Annals of the Missouri Botanical Garden Vol. 67, No. 4 (1980), pp. ii-xxxiii
  • H Missouri Botanical Garden
Flora of North America @ efloras.org
http://www.efloras.org/flora_page.aspx?flora_id=1
'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • I Flora of North America Association
Lophiocarpaceae
World Flora Online Data. 2017.
  • J CC0 1.0 Universal (CC0 1.0).
World Flora Online consortium
http://www.worldfloraonline.org/organisation/WFO
World Flora Online Data. 2018.
  • K CC0 1.0 Universal (CC0 1.0).