Bothriochloa longipaniculata

longspike silver beardgrass, longspike silver bluestem
Family

Poaceae

Leaf Arrangement

alternate

Leaf Type

simple

Leaf Shape

linear

Growth Form

graminoid

Flower Color

inconspicuous

Flower Month

May - November

Height (meters)

0.6 - 2.0

Milky Sap

No

Armed/Unarmed

Unarmed

Origin

native

Lifespan

perennial

Growing Season

Warm season


Prairie Coefficient of Conservatism

1

Field Characters

Very similar to Bothriochloa laguroides ssp. torreyana which some workers consider to be the same species. Gould (1978) distinguishes between these two species by their glumes which are narrowly ovate and shiny green in var. longipaniculata and ovate, broad and blunt, and dull green in var. torreyana. He also sites the presence of a white waxy covering of the inflorescence and vegetative parts in torreyana (not always present). The inflorescence of var. longianiculata is usually longer than 10 cm while those of B. laguroides var. torreyana are usually shorter than 10 cm long. The ligule of B. longipaniculata is membranous and 2-3 mm long while the ligule of B. laguroides var. torreyana is only 1-2 cm long.

Cultural Information

Seeds collected from remnant populations average approximately 300,000/lb.

Animal Use

Good for livestock forage but does not persist in overgrazed pastures. Provides nesting cover for birds, escape cover for rodents and rabbits, foraging habitats for raptors and canids, and fawning cover for deer.

Natural History

Restricted in range to Louisiana, Texas and Mississippi.

Habitat

Along roadsides and fields, open woodlands, disturbed ground, and swales of the Gulf coastal prairie. Often found in heavy clay soil.