Difference between revisions of "Sagittaria filiformis"
N. Amer. Sagittaria. 20, plate 15, figs. 5–8. 1894.
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|place=20, plate 15, figs. 5–8. 1894 | |place=20, plate 15, figs. 5–8. 1894 | ||
|year=1894 | |year=1894 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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|name=Sagittaria stagnorum | |name=Sagittaria stagnorum | ||
|authority=Small | |authority=Small | ||
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| + | }} {{Treatment/ID/Synonym | ||
|name=Sagittaria subulata var. gracillima | |name=Sagittaria subulata var. gracillima | ||
|authority=(S. Watson) J. G. Smith | |authority=(S. Watson) J. G. Smith | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Alismataceae;Sagittaria;Sagittaria filiformis | |hierarchy=Alismataceae;Sagittaria;Sagittaria filiformis | ||
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name=Sagittaria filiformis | name=Sagittaria filiformis | ||
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|authority=J. G. Smith | |authority=J. G. Smith | ||
|rank=species | |rank=species | ||
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|publication title=N. Amer. Sagittaria. | |publication title=N. Amer. Sagittaria. | ||
|publication year=1894 | |publication year=1894 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V22/V22_443.xml |
|genus=Sagittaria | |genus=Sagittaria | ||
|species=Sagittaria filiformis | |species=Sagittaria filiformis | ||
Latest revision as of 20:31, 5 November 2020
Herbs, perennial, to 170 cm, mostly of fresh waters, some plants stranded along shore; rhizomes absent; stolons present; corms present. Leaves submersed or floating, rarely emersed; submersed phyllodial, flattened, 30–250 × 0.1–1.5 cm; floating with petiole flattened, to 40 cm, blade linear-ovate to ovate, rarely sagittate, to 3.5 × 0.5 cm; emersed with petiole 5–10 cm, blade linear-ovate to ovate, rarely hastate to sagittate, to 4 × 0.5 cm; stranded plants usually with expanded leaf blades. Inflorescences racemes, rarely panicles, of 4–10 whorls, floating to slightly emersed, 15–25 × 5–15 cm; peduncles 10–200 cm; bracts connate more than ¼ total length, lanceolate, 110 mm, delicate, not papillose; fruiting pedicels spreading to recurved, cylindric, 1.5–4.5 cm. Flowers to 3 cm diam.; sepals spreading in staminate, erect in pistillate, enclosing flower or fruiting head; filaments dilated, ± equaling anthers, glabrous; pistillate pedicellate, without ring of sterile stamens. Fruiting heads 0.7–1 cm diam.; achenes obovoid, abaxially keeled, 5 × 2.5 mm, beaked; faces not tuberculate, wings 0–3, ± entire, glands 0–1; beak lateral, erect, 1 mm. 2n = 22.
Phenology: Flowering summer–fall.
Habitat: Shallow, swift waters or deep streams in northern portion of range, ponds, lakes, drainage canals, and swamps in southern portion of range
Elevation: 0–100 m
Distribution
Ala., Conn., Fla., Ga., Maine, Mass., N.J., N.Y., N.C., Pa., R.I., S.C., Va.
Discussion
Selected References
None.