Galium johnstonii (Johnston's bedstraw) is a plant species in the Rubiaceae. It is endemic to California, United States, known from four counties: San Bernardino, Los Angeles, Riverside and San Diego. It is dioecious, with male and female flowers on separate plants. References External links Gardening Europe johnstonii Endemic flora of California Mojave Desert Dioecious plants Flora without expected TNC conservation status