| 1. | Lowermost panicle branches not exserted at maturity; lemma often smoky white at maturity with a darker area surrounding the caryopsis |
D. fusca subsp. muelleri (NT SA QLD) Leptochloa fusca subsp. muelleri, Diplachne muelleri |
| Lowermost panicle branches exserted at maturity; lemma colour various but not generally smoky white with a darker area |
1 | |
| 2. | Lemma apex obtuse to truncate; lemma dark green or lead coloured; anthers almost always less than 0.7mm long |
*D. fusca subsp. uninervia (NSW SA QLD) Leptochloa fusca subsp. uninervia, Diplachne uninervia |
| Lemma apex obtuse to acute or acuminate; lemma of various colours; anthers usually 0.5-2.5 mm long |
D. fusca subsp. fusca (NSW VIC NT SA WA QLD) Leptochloa fusca, Diplachne fusca, D. parviflora, D. reptatrix |