Difference between revisions of "Sagittaria ambigua"
N. Amer. Sagittaria. 22, plate 17. 1894.
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|year=1894 | |year=1894 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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| + | |label=Conservation concern | ||
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name=Sagittaria ambigua | name=Sagittaria ambigua | ||
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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;Conservation concern |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V22/V22_189.xml |
|genus=Sagittaria | |genus=Sagittaria | ||
|species=Sagittaria ambigua | |species=Sagittaria ambigua | ||
Latest revision as of 21:29, 5 November 2020
Herbs, perennial, to 90 cm; rhizomes absent; stolons present; corms present. Leaves emersed; petiole triangular, 15–54 cm; blade lanceolate to ovate, 5–20 × 1–10.5 cm. Inflorescences racemes, rarely panicles, of 2–11 whorls, emersed; bracts scarcely connate proximally, linear to lanceolate, 10–30 mm, delicate, not papillose; fruiting pedicels spreading to ascending, cylindric, 1.5–3.5 cm. Flowers to 23 mm diam.; sepals recurved, not enclosing flower or fruiting head; filaments linear, shorter than anthers, glabrous; pistillate pedicellate, without ring of stamens. Fruiting heads 0.8–1.2 cm diam; achenes cuneate-obovoid, abaxially keeled, 1.5–2.1 × 0.8–1.5 mm, beaked; faces not tuberculate, wings 0–1, ± entire, glands absent; beak lateral, horizontal or incurved, 0.1–0.2 mm.
Phenology: Flowering spring–summer (Apr–Sep).
Habitat: Pond and lake shores, shallow water, ditches, and damp areas
Elevation: 100–1000 m
Distribution
Ill., Ind., Kans., Mo., Okla.
Discussion
Of conservation concern.
Selected References
None.