Sagittaria montevidensis subsp. calycina (Engelm.) Bogin APNI*
Synonyms: Sagittaria calycina Engelm. APNI*
Description: Emergent caespitose aquatic perennial to 1 m high, with submerged, floating, but mainly emergent leaves; either a fibrous-rooted annual, or a perennial with a short thick rhizome.
Emergent leaves prominently veined, strongly sagittate (floating leaves sagittate or not), to 25 cm long and 20 cm wide, with the lobes to 15 cm long and 10 cm wide.
Flowers c. 2.5 cm diam. Sepals 3–8 mm long. Petals about twice as long as sepals, white or white with purple base. Stamens 12-numerous, filaments linear and sparsely pubescent. Female flowers with or without a ring of functional stamens; carpels numerous.
Flowering: during warmer months.
Distribution and occurrence: Widely cultivated; naturalized in permanent freshwater to c. 1 m deep. Native of Amer.
NSW subdivisions: *ST, *CWS, *SWP
Treated by some authors as a separate species S. calycina Engelm.
Text by S Jacobs (1993); edited KL Wilson (Nov 2011)
Taxon concept: Flora of NSW 4 (1993)
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