Colors

Data mode

Account

Login
Sign up

Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Alternanthera

Copy permalink to share

1 Inflorescences borne on peduncles 1-7 cm long, these from the leaf axils or terminal.
..2 Bracts keeled; tepals pilose; leaves not succulent, acute to acuminate at the tip
..2 Bracts not keeled; tepals glabrous; leaves somewhat succulent, obtuse to rounded at the tip
1 Inflorescences sessile, in the leaf axils.
image of plant
Show caption*© Scott Ward
....3 Tepals dimorphic; tepal hairs barbed.
......4 Leaf blades longer than broad; tepals 3-5 mm long, densely villous
......4 Leaf blades as broad as long; tepals 5-7 mm long, sparsely villous
image of plant
Show caption*© Scott Ward
....3 Tepals monomorphic; tepal hairs not barbed.
........5 Mature fruit included within the tepals; spikes globular; stems sericeous
........5 Mature fruit exserted between the tepals; spikes narrow, short-cylindric; stems glabrous to pubescent in lines (the nodes also pubescent)
Cite as...