Overview

Distribution

National Distribution

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Localities documented in Tropicos sources

Nymphaea odorata subsp. tuberosa (Paine) Wiersema & Hellq.:
Canada (North America)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Nymphaea tuberosa Paine:
Canada (North America)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Ecology

Associations

Flower-Visiting Insects of White Water Lily in Illinois

Nymphaea tuberosa (White Water Lily)
(Short-tongued bees collect pollen; flies feed on pollen; some insects become dead on the flower and are non-pollinating; although Robertson doesn't list them as such, Hylaeus nelumbonis, Lasioglossum nelumbonis, & Lasioglossum nymphaearum are probably oligolectic on species of the Water Lily family)

Bees (short-tongued)
Halictidae (Halictinae): Agapostemon sericea cp fq [1 dead np], Agapostemon virescens cp fq, Halictus parallelus cp [1 dead np], Halictus rubicunda dead np, Lasioglossum coriaceus dead np, Lasioglossum nelumbonis cp fq olg, Lasioglossum nymphaearum cp olg; Colletidae (Hylaeinae): Hylaeus nelumbonis cp olg

Flies
Syrphidae: Helophilus latifrons fp, Parhelophilus divisus fp fq; Bombyliidae: Sparnopolius confusus dead np

Beetles
Rhipiphoridae: Macrosiagon limbata dead np

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Conservation

Conservation Status

NatureServe Conservation Status

Rounded Global Status Rank: T5 - Secure

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National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: N5 - Secure

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Names and Taxonomy

Taxonomy

Comments: 1994 Checklist (Kartesz) included ssp. tuberosa in Nymphaea odorata, but it is recognized as a subspecies in Kartesz (1999).

Nymphaea odorata ssp. tuberosa was formerly almost universally accepted as a distinct species. In the southern parts of the range where ssp. odorata is absent, it is easily morphologically distinguished from ssp. odorata. However, in the north where their distributions overlap, the distinctions break down in some populations but are maintained in others. Intermediates between the two subspecies cannot be satisfactorily keyed to either one (Flora of North America Editorial Committee 1997).

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