whitegrass
Family
PoaceaeScientific Name
Leersia virginicaOther Common Names:
leersie de virginie
Virginia cutgrass
virginian
cutgrass
white cutgrass
white grass
whitegrass
Identifying Characteristics
Grass Family (Poaceae) Whitegrass is a
perennial grass that is native to eastern North America. It
is 1 to 3 feet tall, branching occasionally; it is erect to
spawling and flowers from July to October. Whitegrass is
a good example of the kinds of grasses that grow in
wooded areas. Such grasses usually have delicate tintextured
foliage and their panicles or racemes are slender
and lanky with small spikelets. As a general rule, they are
not very showy. Whitegrass is fairly easy to identify
because its spikelets are appressed together to form a
single row along the upper half of each branchlet. Each
spikelet is single-flowered, oblongoid, and often ciliate
along the margins of its lemma. Each floret of whitegrass
produces only 2 anthers; this is unusual, because most
grasses produce 3 anthers per floret. It is easily confused
with the non-native and invasive Japanese stilt grass
(Microstegium vimineum). Whitegrass may be
distinguished from Japanese stilt grass by its lack of a
prominent shiny leaf midvein. It has a short life span
relative to most other plant species and a moderate growth
rate
Where Found
Whitegrass is typically found in partially
shaded low-lying wet areas
Leaf Hair on Upper Surface
Varies:
no hairs,
hairs on basal half only
Mature Leaf Width
Varies:
less than 5 mm,
6 to 15 mm
Seedhead
panicle
Life Cycle
perennial
Auricle
present
Ligule
membrane
Ligule Length
Varies:
less than 1 mm,
1-2 mm
Plant Type
Grass