Acmella oppositifolia (Lam.) R.K. Jansen
()USDA Symbol: ACOP
USDA Native Status: L48 (N)
Specimen & Label Data
Location: E bank of Salado Creek, just N of low-water crossing of road from Main Base of Ft Sam Houston to Pershing Firing Range, San Antonio.
Habitat: Full sun; damp, allluvial soil, often flooded.
Description: Perennial, extensively creeping & rooting at many nodes. Flowering branches ascending. Leaves opposite, blades rhombic-ovate to deltoid-ovate, 2-4 cm long, serrate, petiolate. Heads solitary on naked, axillary peduncles to 15 cm long. Rays few, yellow, 3 toothed. Disk flowers perfect, fertile.
Collector: Harry Cliffe
Collection Date: Oct 5, 1994
Specimen number: 684
Herbarium Owner: NPSOT
Herbarium ID: 0966
Accession Date: Nov 22, 1994
Accession Number: 76 Annotations: SCXRB (In flower) [Spilanthes americana]