Neptunia lutea

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Neptunia lutea
Neptunia lutea 2.jpg
Flower, flower bud, and foliage
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Neptunia
Species:
N. lutea
Binomial name
Neptunia lutea
(Leavenworth) Benth.

Neptunia lutea, commonly called the yellow-puff, [1] is an herbaceous plant in the legume family (Fabaceae). It is native to the United States, where it is primarily found in the South Central region, extending eastward into the Blackland Prairies of Alabama and Mississippi. [2] Its natural habitat is in open areas such as prairies and savannas. [3] It is tolerant of disturbed soil. [4]

Description

Neptunia lutea is a trailing, vine-like perennial. Its stems are covered with soft spines, but is not nearly as prickly as the similar-looking Mimosa nuttallii .

The sprawling stems of this plant branch frequently, with each branch growing as long as 5 ft. Leaves are alternate and stalked, bipinnate, looking much like tiny fern fronds. The flowers are tiny and arranged in a slightly elongated, congested bundle (inflorescence) containing 30-60 flowers each. The unopened bud clusters look much like green bramble fruits. Each individual flower has five minute petals and ten stamens. When the flowers open, the inflorescence looks like a puffy yellow ball, with usually only the long yellow stamens visible. The inflorescence rests solitary at the end of a slender stalk.

Like some Mimosa , the leaves of this plant exhibit rapid plant movement. They will close upon touch, as well as at night and during periods of cloudy weather.

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References

  1. "Neptunia lutea". Natural Resources Conservation Service PLANTS Database. USDA . Retrieved 16 April 2018.
  2. "Neptunia lutea". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014. Retrieved 16 April 2018.
  3. Alan Weakley (2015). "Flora of the Southern and Mid-Atlantic States".
  4. Diggs, George; Lipscomb, Barney; O'Kennon, Robert (1999). Flora of North Central Texas. Botanical Research Institute of Texas. p. 680.