Subularia aquatica

Subularia aquatica
File:Subularia Sturm30.jpg
Illustration of Subularia aquatica
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Brassicales
Family:	Brassicaceae
Genus:	Subularia
Species:	S. aquatica
Binomial name
Subularia aquatica L.

Subularia aquatica is an aquatic plant in the mustard family which is known by the common name water awlwort. This is a small herb with awl-like leaves (generally cylindrical but tapering to a sharp point), and growing from a corm above a network of bright white roots. Tiny flowers, each only about a millimeter long, are borne on stalks. Flowers which rise above the surface of the water open, while those that remain submersed stay closed and self-pollinate. The seeds come inside tiny inflated pods. There are two varieties of water awlwort; S. a. var. aquatica is native to Eurasia and S. a. var. americana is native to northern North America. There may also be a Mexican subspecies. This plant grows in ponds, marshes, peat bogs, and other shallow, cold water bodies, often in gravel or sand.

Distribution

Native

Palearctic:

Siberia: West Siberia

Soviet Far East: Kamchatka Oblast

Northern Europe: Denmark, Finland, Iceland, Kaliningrad, Norway, Sweden, United Kingdom

Middle Europe: Belgium, Germany

East Europe: Belarus, Central Russia, Central Black Earth, Northern Russia, North Caucasus, Northwestern Russia, Volga, Urals, Volga-Vyatka

Southeastern Europe: Bulgaria

Southwestern Europe: France, Spain

Nearctic:

Subarctic America: Northwest Territory, Yukon Territory, Greenland, Alaska

Eastern Canada: Newfoundland and Labrador, Nova Scotia, Ontario, Quebec

Western Canada: British Columbia, Manitoba, Saskatchewan

Northeastern United States: Maine, New Hampshire, New York, Vermont

North-Central United States: Minnesota

Northwestern United States: Idaho, Montana, Washington, Wyoming

Southwestern United States: California, Utah

External links

• USDA Plants Profile
• Species profile