Neptunia lutea

yellow puff, yellow sensitive briar
Family

Fabaceae

Leaf Arrangement

alternate

Leaf Attachment

petiolate

Leaf Type

compound, dissected, pinnate

Growth Form

forb

Flower Color

yellow

Flower Month

April - October

Height (meters)

1.0

Milky Sap

No

Armed/Unarmed

Unarmed

Origin

native

Lifespan

perennial


Field Characters

Neptunia can be distinguished from other similar bipinnately compound legumes by the presence of a stipe on the legume. N. lutea can be distinguished by having 8-18 pairs of leaflets and 30-60 flowers per head, a 4-15 mm long stipe and 1-2 mm long calyx (including lobes).

Cultural Information

Seeds average approximately 37,000/lb.

Animal Use

Desirable to cattle as forage.

Natural History

Normally grows in dry sandy areas. Found scattered or locally frequent over the eastern half of Texas south to Aransas and the western half of Louisiana. It is reported from Alabama, Mississippi, Arkansas, Oklahoma, Texas, and Louisiana (USDA 1998).

Habitat

Dry sandy areas, prairies, woodlands and creek valleys.