Galium trifidum
Galium trifidum is a species of flowering plant in the coffee family, known by the common name three-petal bedstraw. It grows widespread in the arctic, temperate and subtropical regions of the Northern Hemisphere: northern and central Asia, northern and eastern Europe and much of North America.
Galium trifidum is a usually perennial herb forming tangles of thin stems up to half a meter long, ringed with whorls of several linear to oval leaves. The inflorescence is a cluster of small white or pinkish flowers, each with usually three petal-like lobes in its corolla.
Subspecies
Five subspecies are currently recognized :- Galium trifidum subsp. brevipes Á.Löve & D.Löve - Canada and the northern United States
- Galium trifidum subsp. columbianum Hultén - Russian Far East, Japan, Korea, China, Taiwan, Alaska, British Columbia, Washington state, Oregon, California, Nevada, Idaho, Montana
- Galium trifidum subsp. halophilum Puff - Quebec, Newfoundland, Canadian Maritimes, Maine, Massachusetts
- Galium trifidum subsp. subbiflorum Puff - Alaska, Yukon, Northwest Territories, Alberta, British Columbia, high elevations in the western United States as far south as California and New Mexico
- Galium trifidum subsp. trifidum - widespread throughout most of species range