| Author | L. | |
| Distribution | Throughout the state; no doubt in other counties not shown on the map below.
Native of the Neotropics and Paleotropics; in N.A. MA to Ont. and NE, south to FL and TX; also AZ. | |
| Abundance | Frequent to common throughout, except uncommon in the Mountains and rare on the Outer Banks.
| |
| Habitat | Roadsides, fields, lawn weed, river shores, creek margins, disturbed ground, pastures, barnyards. | |
| Phenology | Flowering and fruiting June-November. | |
| Identification | Prickly Fanpetals is much like Arrowleaf Sida (S. rhombifolia), but the leaves are not rhombic but narrowly ovate or lance-shaped (widest towards the base). The pale to medium yellow flowers grow singly or 2-4 in leaf axils, the pedicels shorter than in Arrowleaf Sida and sometimes not obviously visible. Many plants have a short spine where the leafstalk meets the stem, but some plants lack them. | |
| Taxonomic Comments | | |
| Other Common Name(s) | Prickly Sida | |
| State Rank | SE | |
| Global Rank | G5? | |
| State Status | | |
| US Status | | |
| USACE-agcp | FACU link |
| USACE-emp | UPL link |
