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Trillium has included all pedicellate-flowered species (which is a paraphyletic group), but in 2022, the subgenus was circumscribed as a clade of fourteen (14) species. [38] Its type species is Trillium erectum L. Historically, the subgenus has been known as the Erectum group. [34] [39] [40] [35] [41] Trillium subgen.
Trillium ovatum, the Pacific trillium, also known as the western wakerobin, western white trillium, or western trillium, is a species of flowering plant in the family Melanthiaceae. [ 1 ] [ 5 ] [ 6 ] [ 7 ] It is the most widespread and abundant trillium in western North America .
Trillium grandiflorum is a perennial that grows from a short rhizome and produces a single, showy white flower atop a whorl of three leaves. Flowering stems are 20–40 cm (8–16 in) tall. [6]
Trillium nivale, the snow trillium [3] or dwarf white trillium, is a species of flowering plant in the family Melanthiaceae.It is native to parts of the east and midwest United States, primarily the Great Lakes States, the Ohio Valley, and the Upper Mississippi Valley, as far north as central Minnesota.
Trillium cuneatum, the little sweet betsy, [5] also known as whip-poor-will flower, large toadshade, purple toadshade, and bloody butcher, [6] is a species of ...
Trillium recurvatum, the prairie trillium, [3] toadshade, [4] or bloody butcher, [5] is a species of perennial herbaceous flowering plant in the family Melanthiaceae. [3] [5] It is native to parts of central and eastern United States, where it is found from Iowa south to Texas and east to North Carolina and Pennsylvania.
Trillium cernuum is a perennial herbaceous plant that spreads by means of an underground rhizome.Up to three scapes (stems) rise directly from the rhizome, each standing 15–40 cm (6–16 in) tall.
Trillium petiolatum is "without question the least Trillium-like of all trilliums." [6] The specific epithet petiolatum, meaning "petioled," is intended to draw attention to its very long petioles, which are 5 to 12 cm (2 to 5 in) long. The petioles are nearly as long as the leaf blades, which themselves are 7 to 14 cm (3 to 6 in) long and 5.5 ...