Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Najas guadalupensis (Spreng.) Magnus image
Photographer: from USDA Plants website           

Botanical Illustration
Family Najadaceae
Najas guadalupensis (Spreng.) Magnus
southern naiad, southern water-nymph
Najas: from Greek Naias, a water nymph
guadalupensis: from the island of Guadeloupe in the West Indies
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: submerged annual, monoecious aquatic; stems very long, many branches; slight rootstock
Flower: tiny, from leaf axis
Fruit:dull, paper-thin walls, 20-40 rows of deep angled pits
Leaf:light green, very narrow, to 2"L x 1"W, toothed edges, 13-17 per side, opposite, clasping stem, wide-sloped at base
Habitat: wet; clear 3' or more deep water; in sandy, gravelly soil

More Information Natural Communities Herbarium Specimens
All Najas list Google- Images or Text

Flora of North America (off site)
(for list of synonyms - see the subspecies)

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UW-Stevens Point Biology Dept.
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