''Drosera linearis'', commonly called the slenderleaf sundew,
is a
sundew
''Drosera'', which is commonly known as the sundews, is one of the largest genus, genera of carnivorous plants, with at least 194 species. 2 volumes. These members of the family Droseraceae lure, capture, and digest insects using stalked mucil ...
found in the
Great Lakes region
The Great Lakes region of North America is a binational Canada, Canadian–United States, American region that includes portions of the eight U.S. states of Illinois, Indiana, Michigan, Minnesota, New York (state), New York, Ohio, Pennsylvania ...
of North America, in Canada and the United States, such as Michigan, and in Montana. It is usually no more than four inches tall.
[D'Amato, P. 1998. '' The Savage Garden: Cultivating Carnivorous Plants''. Ten Speed Press, Berkeley, California.]
Description
''Drosera linearis'' is a herbaceous perennial with gland-tipped hairs covering long linear leaves. Plants form rosettes that are 6–15 cm wide. The stalks (
stipule
In botany, a stipule is an outgrowth typically borne on both sides (sometimes on just one side) of the base of a leafstalk (the petiole). Stipules are considered part of the anatomy of the leaf of a typical flowering plant, although in many speci ...
s) of the leaves are 5 mm wide and hairless. The leaf blades are linear-shaped, 1–6 cm long, and 1.5–3 mm wide with edges lined with hair-like glands. The flower scapes are hairless, 6 to 13 cm long, ending in 1 to 4 white flowers. The flowers are 6–8 mm wide with obovate shaped petals. The seed capsules are 4–5 mm long and when ripe have black, oblong-obovoid to rhomboidal-shaped seeds that 0.5–0.8 mm long. The seeds are densely and irregularly pitted with craters. The diploid (2N) chromosome count is 20.
Distribution and habitat
''Drosera linearis'' range is centered around the
great lakes
The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five la ...
region with scattered populations in western Canada and the
maritime provinces
The Maritimes, also called the Maritime provinces, is a region of Eastern Canada consisting of three provinces: New Brunswick, Nova Scotia, and Prince Edward Island. The Maritimes had a population of 1,899,324 in 2021, which makes up 5.1% of Ca ...
. It is rare over most of its range, and only locally common in specific habitats. It is found in remote peat-lands in the northwestern and north central part of
Minnesota
Minnesota () is a state in the upper midwestern region of the United States. It is the 12th largest U.S. state in area and the List of U.S. states and territories by population, 22nd most populous, with over 5.75 million residents. Minne ...
; where it grows in minerotrophic water originating from groundwater or nearby uplands.
Because of its rareness and its restrictive habitats, it is listed as a threatened species in Minnesota.
See also
*
List of ''Drosera'' species
References
External links
linearis
''Chomatodus'' (from el, χωμα , 'mound' and el, ὀδούς 'tooth') is a prehistoric cartilaginous fish genus.
Species
*†''Chomatodus affinis'' Newberry & Worthen, 1866
*†''Chomatodus angulatus'' Newberry & Worthen, 1866
*†''Ch ...
Carnivorous plants of North America
Flora of Alberta
Flora of Maine
Flora of Michigan
Flora of Minnesota
Flora of Montana
Flora of Ontario
Flora of Quebec
Flora of Wisconsin
Plants described in 1822
Flora without expected TNC conservation status
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