Subularia aquatica

Subularia aquatica is an aquatic plant in the family Brassicaceae 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.

Subularia aquatica
Illustration of Subularia aquatica
Conservation status
Secure  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Brassicales
Family:	Brassicaceae
Genus:	Subularia
Species:	S. aquatica
Binomial name
Subularia aquatica L.

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 Territories, 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