Neptunia pubescens

(Tropical Puff)


Neptunia pubescens, Along City Park Road, Austin, Travis Co. 6236

Scientific Name Neptunia pubescens USDA PLANTS Symbol NEPU3
Common Name Tropical Puff ITIS Taxonomic Serial No. 26802
Family Fabaceae (Pea) Southeastern Flora Ref. Click Here
Description Habitat: Dry sandy soils, grasslands. (Specimen in photo found in dry area along roadside).
Plant: Short, sprawling perennial, multiple stems trailing over ground or low vegetation.
Leaves: Twice-compound leaves up to 3-1/2 inches long overall with 2 to 5 pairs of pinnae (larger leaflets), each with many (14-43) pairs of tiny ultimate leaflets, each 1/10 to 1/3-inch long that fold together when touched.
Inflorescence: Asymmetrical-looking globe-shaped yellow flowers in cluster about 1/2 inch across; each cluster has 15-30 flowers, lower ones sterile and the upper bisexual; each sterile flower has 10 yellow protruding sterile stamens that look like petals (petaloid staminodes); each bisexual flower has 10 stamens and a pistil.
Bloom Period: May to October.
References: Vascular Plants of Williamson County, "Manual of the Vascular Plants of Texas" by Correll and Johnston, and "Wildflowers of Texas" by Michael Eason.
BONAP Distribution Map

Map Color Key
Texas Status:

Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County

© Tom Lebsack 2024