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Moist sandy or peaty soils. Bogs and fens.
In fens can often be found with Lobelia kalmii and Parnassia glauca
Most of the eastern half of the US
Hemiparasitic annual; stems glabrous or nearly so, simple or branched; leaves linear; pedicels, 1-4 mm; calyx lobes 0.5-2 mm long, up to 0.5 times as long as the tube; corolla 2-3.8 cm long, the upper lobes only slightly spreading; pollen sacs 2.5-3.5 mm.
Flowers August to October
Wetland Indicator: Facultative Wetland
Found in a variety of moist habitats from acid to alkaline, not particularly common but wider ranging than the similar but smaller A. paupercula.
Gleason, Henry A.
and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Swink, F. and G.
Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
USDA, NRCS. 2002.
The PLANTS Database, Version 3.5 (http://plants.usda.gov).
National Plant Data Center, Baton Rouge, LA 70874-4490 USA
© Michael Hough 2004