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Bluntleaf bedstraw

Galium obtusum

Also called Wild madder, Bristly Bedstraw, Blunt Leaved Bedstraw, Large Marsh Bedstraw, Obtuse Bedstraw

Bluntleaf bedstraw
Photo: Eric Hunt, CC BY-SA 4.0

Bluntleaf bedstraw is a small native perennial wildflower of eastern North America, with whorled leaves and tiny white flowers. It grows best in moist soil in sun or partial shade, and it is rarely grown as an ornamental.

Family
Rubiaceae (Coffee family)
Grows as
Perennial
Light
Full sun
Water
Keep soil consistently moist, especially in the growing season.
Soil
Moist, fertile soil; tolerates loamy or wetland-edge conditions.
Temperature
Hardy in temperate climates; tolerates cold winters typical of eastern North America.
How easy
Moderate
Native range
SE. Canada to C. & E. U.S.A.
Climate
temperate

About

Galium obtusum, the bluntleaf bedstraw, is a herbaceous plant species in the family Rubiaceae. Bluntleaf bedstraw is a wildflower native to eastern North America.

Where it grows

Galium obtusum can be found in most of the eastern states in North America except Maine where it has been eradicated. In Vermont, New Hampshire, and Florida it is considered to be a very rare plant, while in other states (New York, Massachusetts, Rhode Island, Connecticut, and Pennsylvania) it is considered to be a noxious weed as it competes with agricultural crops. Western North America is completely absent of the plant. Habitats for Galium obtusum can vary, it is found at either full sun or partial sun environments and it can be found in areas such as deciduous forest and wetlands and is typically found growing among trees, bushes, in meadows, beside rivers, and can even be found along shorelines.

Uses

The Greek word Galium means "milk" this meaning suggest that Galium obtusum may have been a plant that was used in the process of curdling milk. Some people even use this flower as decoration, but its popularity as an ornamental is low.

Other Galium plants

Mount Aetna Bedstraw · White bedstraw · Phloxleaf bedstraw · Narrowleaf bedstraw · Alpine Bedstraw · Galium antarcticum · Stickywilly · Sand Bedstraw · Argus bedstraw · Awned bedstraw · Arkansas bedstraw · Rough bedstraw

Text excerpted from the Wikipedia article Galium obtusum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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