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Alisma subcordatum, the American water plantain, is a perennial aquatic plant in the water-plantain family (Alismataceae). This plant grows to about 3 feet (0.91 meters) in height with lance to oval shaped leaves rising from bulbous corms with fibrous roots. Any leaves that form underwater are weak and quick to rot; they rarely remain on adult ...
Since the establishment of the Office of Seed and Plant Introduction there has been an office within the USDA with this responsibility, though its name changes periodically. [2] Today, the branch of the USDA responsible for collecting and introducing new plant species is called the National Germplasm Resources Laboratory. [2] [7]
The plant has many ethnobotanical uses. The roots and leaves were used medicinally, and the berries were occasionally used for food. [3] Native Americans used the plant to treat wounds and eyestrain. [4] Being tolerant of deep shade, drought, and extensive watering, the plant is becoming more popular as a shade groundcover in gardening. Care ...
The U.S. Department of Agriculture's Pomological Watercolor Collection is an archive of some 7,500 watercolor botanical illustrations created for the USDA between the years 1886 and 1942 by around five dozen artists. [1]
Polypogon monspeliensis, commonly known as annual beard-grass [1] or annual rabbitsfoot grass, [2] is a species of grass. It is native to the Old World, but it can be found today throughout the world as an introduced species and sometimes a noxious weed. It is an annual grass growing to heights between 5 centimeters and one meter.
Gambelia speciosa, previously classified as Galvezia speciosa, [1] [2] [3] is commonly known as showy island snapdragon or showy greenbright.. It is a perennial plant, which is endemic to California chaparral and woodlands habitats on the Channel Islands in Southern California, and on Guadalupe Island west of the Baja California Peninsula in Baja California, Mexico.
Chasmanthium latifolium, known as fish-on-a-fishing-pole, northern wood-oats, inland sea oats, northern sea oats, and river oats is a species of grass native to the central and eastern United States, Manitoba, and northeastern Mexico; it grows as far north as Pennsylvania and Michigan, [2] where it is a threatened species. [3]
Rhamnus crocea subsp. ilicifolia, synonym Rhamnus ilicifolia, is a subspecies of flowering plant in the buckthorn family, [1] known by the common name hollyleaf redberry. [2] It is native to western North America, where it is a common plant growing in many types of habitat, including chaparral and wooded areas.