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Nasturtium
Family: Brassicaceae
Nasturtium image
Max Licher  
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Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Perennials; (aquatic, rhizomatous, rooting at proximal nodes); not scapose; often glabrous, sometimes pubescent. Stems prostrate or decumbent, or erect in emergent plants, unbranched. Leaves cauline; not rosulate; petiolate; petiole base sometimes auriculate, blade (pinnately compound in emerged plants, or simple in deeply submerged plants, lateral leaflets petiolulate or sessile, 1-6(-12) pairs), margins entire, repand, or, rarely, dentate. Racemes (corymbose, several-flowered), elongated in fruit. Fruiting pedicels divaricate or descending, slender, (glabrous or adaxially puberulent). Flowers: sepals erect or ascending, oblong [ovate], lateral pair subsaccate or not saccate basally, (glabrous); petals usually white, rarely pink, obovate or narrowly spatulate, (longer than sepals), claw undifferentiated from blade, (attenuate to clawlike base, apex obtuse, acute, or rounded); stamens tetradynamous; filaments (white), not dilated basally; anthers oblong, (apex obtuse); nectar glands (2), lateral, annular or semiannular. Fruits siliques, sessile, usually linear, rarely narrowly oblong, smooth or slightly torulose, straight or slightly curved, terete; valves each obscurely veined, glabrous; replum rounded; septum complete; ovules 25-50 per ovary; style obsolete or distinct; stigma capitate. Seeds plump, not winged, oblong or ovoid; seed coat (minutely to coarsely reticulate), not mucilaginous when wetted; cotyledons accumbent. x = 8.
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Show all taxa
Nasturtium amphibium
Image of Nasturtium amphibium
Nasturtium aquaticum
Image of Nasturtium aquaticum
Nasturtium armoracia
Image of Nasturtium armoracia
Nasturtium austriacum
Images
not available
Nasturtium calycinum
Image of Nasturtium calycinum
Nasturtium crystallinum
Images
not available
Nasturtium floridanum
Image of Nasturtium floridanum
Nasturtium gambelii
Image of Nasturtium gambelii
Nasturtium heterophyllum
Images
not available
Nasturtium lacustre
Image of Nasturtium lacustre
Nasturtium lyratum
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not available
Nasturtium microphyllum
Image of Nasturtium microphyllum
Nasturtium microspermum
Images
not available
Nasturtium obtusum
Image of Nasturtium obtusum
Nasturtium officinale
Image of Nasturtium officinale
Nasturtium sarmentosum
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not available
Nasturtium sessiliflorum
Image of Nasturtium sessiliflorum
Nasturtium stylosum
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not available
Nasturtium x sterile
Image of Nasturtium x sterile
The National Science Foundation
Developments of SEINet, Symbiota, and associated specimen databases have been supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)