Species of flowering plant
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Agave virginica, synonym Manfreda virginica, commonly known as the false aloe, rattlesnake master, American aloe, Virginia agave, and eastern agave, is a species of agave. It is native to the central and southeastern United States and northeastern Mexico, where it is found in prairies, upland rocky glades, and sandy open woods.
Description.
False aloe is acaulescent, meaning the stem is extremely short. Leaves and flowering stems grow from a bulbous herbaceous caudex. The fleshy green leaves, usually spotted or speckled with maroon, are long and across. The leaf margins have fine teeth and leaves taper to a non-spiny tip. Leaf shape and size in "Agave virginica" vary with soil type, amount of shade, length of cold period, and position of leaf in the rosette. Speckles and spots occur frequently on some leaves in most populations, and some authors have used the informal designation "forma tigrina" for such variants.
In early summer, leafless flower stalks emerge from the basal rosettes of leaves, growing rapidly up to tall. The inflorescence appears June to August, with 10–61 closely spaced flowers grouped in a spike that is about long. Each flower, long, is whitish green or yellowish green, essentially tubular, nearly erect, and slender, with a fragrant sweet fruity odor. Seed capsules are spherical and in diameter.
Distribution and habitat.
It is native to an area stretching from North Carolina west to Texas and north to Illinois in the United States and south to Nuevo León and Tamaulipas in Mexico. Its habitat is sunny, well-drained areas in prairies, upland rocky glades, and sandy open woods. It is the only "Agave" species north of Texas.
Ecology.
"Agave virginica" is adapted primarily to nocturnal pollination by medium-sized moths and larger sphinx moths. Diurnal pollination by large bees results in significantly less seed set than nocturnal and open pollination. Ruby-throated hummingbirds are also attracted to the blooms.
References.
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