Texas Wildbuds
Ranunculus sardous
(Hairy Buttercup)
Ranunculus sardous, Brazos Bend State Park, Ft. Bend Co. 7336
Ranunculus sardous, Brazos Bend State Park, Ft. Bend Co. 7337
Ranunculus sardous, Brazos Bend State Park, Ft. Bend Co. 7353
Ranunculus sardous, Brazos Bend State Park, Ft. Bend Co. 7339
| Scientific Name | Ranunculus sardous | USDA PLANTS Symbol | RASA |
| Common Name | Hairy Buttercup | ITIS Taxonomic Serial No. | 18645 |
| Family | Ranunculaceae (Buttercup) | SEINet Reference |
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| Description | Habitat: Moist soils in pastures, fields and other open disturbed areas, pond margins, along roadsides, open woods. Plant: Annual with nearly erect hairy stems 4 to 20 inches long. Leaves: Basal and lower stem leaves broadly cordate or ovate in outline, 0.8 to 2-3/8 inches long and wide overall; deeply lobed or compound into 3 lobes on petioles 1.2 to 6.3 inches long; upper stem leaves and bracts unstalked, or nearly so, 3-parted or simple. Inflorescence: Single or a few flowers on main stem and branches, flower stalks 0.4 to 2.4 inches long,; bright yellow flowers about 1 inch across or somewhat less with 5 ovate petals, 25 to 50 stamens and 10-35 pistils; 5 reflexed, hairy, ovate sepals, less than 0.3-inch long. Bloom Period: April to June. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, Missouri Plants, eFloras-BC and SEINet. |
BONAP Distribution Map Map Color Key |
Texas Status: Introduced |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2026
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