John Daniel Freeman

Trillium foetidissimum, also known as the Mississippi River wakerobin, stinking trillium, or fetid trillium, is a species of flowering plant in the family Melanthiaceae. It is found along the Louisiana–Mississippi border in a variety of habitats. Trillium foetidissimum is a perennial herbaceous plant that blooms from early March to early April.

Trillium decipiens, also known as Chattahoochee River wakerobin or deceiving trillium, is a spring-flowering perennial plant. It occurs mostly near the Chattahoochee River in Alabama, Florida and Georgia. Scattered populations are found elsewhere in these three states, all within the Atlantic Coastal Plain or Gulf Coastal Plain. Rich deciduous woods of bluffs, ravines, and alluvial land provide its most favored habitat.

Trillium reliquum, the relict trillium, Confederate wakerobin, or Confederate trillium, is a herbaceous, flowering perennial of the family Melanthiaceae. It is found only in the southeastern region of the United States: southeast Alabama and central and west Georgia, with a disjunct population in east Georgia and southwest South Carolina. As a relict species, there are a few remaining groups but it was once more abundant when conditions were different. Significant habitat loss has occurred through clearing of forests for agricultural and pine farm uses. Effective May 4, 1988, Trillium

Trillium kurabayashii is a species of flowering plant in the bunchflower family Melanthiaceae. The species is endemic to the western United States, occurring in extreme southwestern Oregon, northwestern California, and the Sierra Nevada of northern California. It was first described by John Daniel Freeman in 1975. The specific epithet kurabayashii honors Masataka Kurabayashi, a Japanese cytologist and population geneticist who first postulated the taxon’s existence. It is commonly known as the giant purple wakerobin, a reference to its conspicuously large, dark purple-red flower, one of the

Trillium angustipetalum, with the common name is narrowpetal wakerobin, is a species of Trillium, plants which may be included within the Liliaceae (lily family) or the newer family Melanthiaceae.

Trillium albidum is a species of flowering plant in the bunchflower family Melanthiaceae. It is the only trillium characterized by a stalkless white flower. The species is endemic to the western United States, ranging from central California through Oregon to southwestern Washington. In the San Francisco Bay Area, it is often confused with a white-flowered form of Trillium chloropetalum. In northern Oregon and southwestern Washington, it has a smaller, less conspicuous flower. Trillium albidum was first described by John Daniel Freeman in 1975. The specific epithet albidum means "white", a

Trillium gracile, commonly known as the Sabine River wakerobin, slender trillium, or graceful trillium, is a species of flowering plant in the family Melanthiaceae. It is native to the region along the Sabine River in western Louisiana and eastern Texas. It generally grows in mature pine and hardwood forests, and on riverbanks. Trillium gracile is a perennial herbaceous plant that spreads by means of underground rhizomes. The stem has 3 bracts in a whorl well above ground, each bract up to 8.5 cm (3.4 inches) long, the blades green mottled with darker green splotches. Flowers are solitary on

Trillium channellii is a plant species endemic to the island of Hokkaido in northern Japan. It is named in honor of Robert B. Channell of Vanderbilt University in Nashville, USA. The plant has been listed as endangered by the National Museum of Nature and Science (Tokyo). Trillium channellii is a perennial herb spreading by means of underground rhizomes. Aerial shoots reach up to 50 cm tall. Leaves are broadly elliptic, wider than long, up to 12 cm long and 14 cm wide. Flowers are white, about 90 mm in diameter. Chromosome number: 2n (4x) = 20.