Weed
serrated tussock grass, serrated tussock
FloretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
ObovateObovate:
Inverted egg shaped with apical end the broadest.
Brown
CallusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
is copiously pubescentPubescent:
Having hairs.
. LemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
is covered with transverseTransverse:
Set crosswise, crossing or at right angles.
row of tubercles.
LemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
encloses most of floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
and has long geniculateGeniculate:
Bent at a sharp angle.
awn.
Covered by lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
Short pointed callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
present.
FloretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
is laterally compressed with the lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
enclosing most of the floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
. Lemma wider on one side than the other. Surface is rough with transverseTransverse:
Set crosswise, crossing or at right angles.
rows of tubercles. Long papery glumesGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
enclose a single floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
.
State Noxious Weed: Alabama, Arkansas, Delaware, Florida, Georgia, Hawaii, Illinois, Maryland, Michigan, Missouri, Mississippi, Nebraska, North Carolina, New Hampshire, Ohio, Oklahoma, Oregon, South Carolina, Texas, Vermont, Virginia, Washington, West Virginia, Wyoming
Federal
Learn more on ITP's Federal Noxious Weed Disseminules tool.
Included
For more information, see ISMA fact sheet.
Poaceae
Nassella trichotoma (Nees) Hack.
Stipa trichotoma Nees