Flowers on solitary axillary peduncles that are articulate near the flower. Epicalyx absent. Calyx 5-lobed. Petals mostly yellow. Staminal column divided apically into numerous filaments. Ovary loculi c. 5, each with 3–9 ovules; style branches as many as loculi, filiform to clavate, stigmatose only at apex.
| | Key to the species | |
| 1 | Mericarps distinctly awned at upper outer edge | 2 |
| Mericarps obtuse or angled at upper outer edge | 4 |
| 2 | Fruit black, c. 20 mm diam | Abutilon theophrasti |
| Fruit green, less than 10 mm diam
Back to 1 | 3 |
| 3 | Fruit only slightly exceeding calyx | Abutilon malvifolium |
| Fruit usually twice as long as calyx
Back to 2 | Abutilon oxycarpum |
| 4 | Fruit either papery or straight-sided and truncate; corolla 3–14 mm long | 5 |
| Fruit divergent and depressed, not papery; corolla 10–25 mm long
Back to 1 | 6 |
| 5 | Fruit papery, divergent and depressed; corolla 12–14 mm long | Abutilon halophilum |
| Fruit hard, green, straight-sided and truncate; corolla 3–4 mm long
Back to 4 | Abutilon macrum |
| 6 | Corolla more or less equalling calyx | 7 |
| Corolla much longer than calyx
Back to 4 | 8 |
| 7 | Calyx strongly 5-keeled in lower half, depressed in centre in fruit; pubescence velvety-grey | Abutilon otocarpum |
| Calyx not as above; pubescence hoary, usually blue-green
Back to 6 | Abutilon cryptopetalum |
| 8 | Corolla less than 25 mm long; calyx lobes longer than tube | 9 |
| Corolla more than 25 mm long; calyx lobes shorter than tube
Back to 6 | 10 |
| 9 | Calyx 7–8 mm long; stipules linear-subulate; flowers always solitary | Abutilon fraseri |
| Calyx 10–15 mm long; stipules narrow-ovate; flowers often in few-flowered panicles
Back to 8 | Abutilon grandifolium |
| 10 | Calyx narrow-tubular; mericarps angled | Abutilon tubulosum |
| Calyx broad-tubular, campanulate; mericarps obtuse
Back to 8 | Abutilon leucopetalum |
