| 词条 | Sagittaria ambigua |
| 释义 |
|name = Kansas arrowhead |image = |genus = Sagittaria |species = ambigua |authority = J.G.Sm. 1894 |synonyms = |synonyms_ref = }}Sagittaria ambigua, the Kansas arrowhead, is an aquatic plant species native to the central United States (Indiana, Illinois, Arkansas, Missouri, Kansas and Oklahoma). It grows in wet areas, mostly along the shores of ponds and waterways.[1][2][3][4]Sagittaria ambigua is a perennial herb up to {{convert|90|cm|ft|abbr=on}} tall. Leaves are broadly lanceolate, the blade up to {{convert|20|cm|in|abbr=on}} long and {{convert|12|cm|in|round=0.5|abbr=on}} wide.[1][5][6][7] References1. ^1 {{Cite web|url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=222000327|title=Sagittaria ambigua in Flora of North America @ efloras.org|website=www.efloras.org|access-date=2017-01-30}} 2. ^{{Cite web|url=http://apps.kew.org/wcsp/namedetail.do?name_id=287225|title=World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew|website=apps.kew.org|language=en-GB|access-date=2017-01-30}} 3. ^Biota of North America Program 2014 county distribution map Image 4. ^{{Cite web|url=https://plants.usda.gov/core/profile?symbol=SAAM4|title=Plants Profile for Sagittaria ambigua (Kansas arrowhead)|website=plants.usda.gov|access-date=2017-01-30}} 5. ^Smith, Jared Gage. 1894. North American Species of Sagittaria and Lophotocarpus 22–23, plate 17, Sagittaria ambigua 6. ^Great Plains Flora Association. 1986. Flora of the Great Plains i–vii, 1–1392. University Press of Kansas, Lawrence, Sagittaria ambigua. 7. ^Gleason, H. A. & A.J. Cronquist. 1968. The Pteridophytoa, Gymnospermae and Monocotyledoneae. 1: 1–482. In H. A. Gleason, New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada, ed. 3, New York Botanical Garden, New York. External links
4 : Sagittaria|Flora of the United States|Freshwater plants|Plants described in 1894 |
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