Weed
fountaingrass, tender fountain grass
SpikeletSpikelet:
One or more florets that are subtended by a pair of bracts called glumes. Spikelets are pedicellate if located on a pedicle and sessile if attached directly to the rachis. Often spikelets with single florets have remnants of a second floret, usually a lemma.
OvalOval:
Broadly elliptic.
Light brown
Smooth
Hard and arched
Hard and flat
Second glumeGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
and sterile lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
fit tightly over 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.
.
SpikeletsSpikelet:
One or more florets that are subtended by a pair of bracts called glumes. Spikelets are pedicellate if located on a pedicle and sessile if attached directly to the rachis. Often spikelets with single florets have remnants of a second floret, usually a lemma. are enclosed in an involucreInvolucre:
A number of bracts (often leaf-like) that subtend an inflorescence such as the head in sunflowers.
of bristles from which they separate at maturity; units are mostly found as spikeletsSpikelet:
One or more florets that are subtended by a pair of bracts called glumes. Spikelets are pedicellate if located on a pedicle and sessile if attached directly to the rachis. Often spikelets with single florets have remnants of a second floret, usually a lemma.. The first glumeGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it. is missing; the second glumeGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it. has a central nerve.
State Noxious Weed: Arizona, North Carolina
Not included
For more information, see ISMA fact sheet, Cenchrus spp.
Poaceae
Cenchrus setaceus (Forssk.) Morrone
Cenchrus asperifolius Desf.
Pennisetum rueppelianum hort. ex Mez
Pennisetum ruppelii Steud.
Pennisetum setaceum (Forssk.) Chiov.
