Comments
(
anglais
)
fourni par eFloras
No specimens have been seen from New Jersey, but although the species is to be expected there.
Limnobium spongia has two leaf forms, often on the same plant. The floating leaves have a thick layer of aerenchyma on the abaxial surface; the emersed leaves lack such tissue. Flowering and fruiting are predominantly on individuals with emersed leaves. Following pollination, the peduncle becomes recurved, forcing the developing fruit below the water surface.
- licence
- cc-by-nc-sa-3.0
- droit d’auteur
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
anglais
)
fourni par eFloras
Herbs, to 50 cm. Roots branched; stolon buds with 10 or more roots. Leaves floating or emersed in dense vegetation and when stranded; blade 1--10 ´ 0.9--7.8 cm; primary veins forming 30--80° angle with midvein, ascending, aerenchyma extensive, nearly margin to margin, individual aerenchyma space (located ca. 1 mm from either side of midvein) , 0.4--1.6 mm wide, 1 mm from midveinacross its longest axis. Flowers: staminate flowers with 9--12(--18) stamens; pistillate flowers with 3--4 petals; ovary 6--9-carpellate, locules 6--9; styles 2-fid nearly to base; ovules 200. Fruits 4--12 mm diam.
- licence
- cc-by-nc-sa-3.0
- droit d’auteur
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
(
anglais
)
fourni par eFloras
Ala., Ark., Del., Fla., Ga., Ill., Ky., La., Md., Miss., Mo., N.Y., N.C., Okla., S.C., Tenn., Tex., Va.
- licence
- cc-by-nc-sa-3.0
- droit d’auteur
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
(
anglais
)
fourni par eFloras
Floating on slow-moving water of streams, bayous, and lakes or stranded along shore; 0--100m.
- licence
- cc-by-nc-sa-3.0
- droit d’auteur
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
(
anglais
)
fourni par eFloras
Hydrocharis spongia Bosc, Ann. Mus. Natl. Hist. Nat. 9: 396. 1807
- licence
- cc-by-nc-sa-3.0
- droit d’auteur
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Comprehensive Description
(
anglais
)
fourni par North American Flora
Limnobium spongia (Bosc) Rich.; Steud. Norn. Bot
ed. 2. 45. 1841.
Hydrocharis Spongia Bosc, Ann. Mus. Paris 9 : 396. 1807. Limnobium Bosci Rich. Mem. Inst. Paris 2 : 32. 1811. Hydrocharis cordifolia Nutt. Gen. 2 : 241. 1818.
Petioles erect or ascending, 5-2.5 cm. long; leaf-blades ovate to suborbicular or the earlier reniform, 2-5 cm. broad, obtuse at the apex, truncate or cordate at the base, entire, purplish beneath, becoming somewhat spongy in winter ; staminate scapes 7-10 cm. long, filiform; spathe lance-ovoid, 3-5 cm. long; pistillate scapes about 2.5 cm. long, stout, recurved in fruit; sepals 7-10 mm. long, oblong; petals linear, 8-10 mm. long; anthers linear, about 4 mm. long; stigmas filiform, 10-15 mm. long, papillose-ciliate ; berry oval, 1-1.5 cm. long.
Type locality : South Carolina.
Distribution : Shallow water, from New Jersey and Ontario to Florida, Texas, Missouri, and
- citation bibliographique
- Percy Wilson, Per Axel Rydberg, Norman Taylor, Nathaniel Lord Britton, John Kunkel Small, George Valentine Nash. 1909. PANDANALES-POALES; TYPHACEAE, SPARGANACEAE, ELODEACEAE, HYDROCHARITACEAE, ZANNICHELLIACEAE, ZOSTERACEAE, CYMODOCEACEAE, NAIADACEAE, LILAEACEAE, SCHEUCHZERIACEAE, ALISMACEAE, BUTOMACEAE, POACEAE (pars). North American flora. vol 17(1). New York Botanical Garden, New York, NY
Limnobium spongia: Brief Summary
(
catalan ; valencien
)
fourni par wikipedia CA
Limnobium spongia és una planta aquàtica flotadora que és planta nativa de l'est dels Estats Units. És una planta herbàcia perenne de fins a 50 cm d'alt.
És d'aspecte semblant a l'espècie emparentada Limnobium laevigatum i al jacint d'aigua (Eichhornia crassipes).
- licence
- cc-by-sa-3.0
- droit d’auteur
- Autors i editors de Wikipedia
Limnobium spongia: Brief Summary
(
vietnamien
)
fourni par wikipedia VI
Limnobium spongia là một loài thực vật có hoa trong họ Hydrocharitaceae. Loài này được (Bosc) Steud. mô tả khoa học đầu tiên năm 1841.
- licence
- cc-by-sa-3.0
- droit d’auteur
- Wikipedia tác giả và biên tập viên
