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.

Click images to enlarge and show more photo credit.

Key to Calliandra

Fabaceae

Calliandra

Copy permalink to share

1
Flower heads 4-6 cm in diameter (measured across the full diameter out to the tips of the stamens), with > 20 flowers per head; pinnae 1 pair per leaf; leaflets 4-8 pairs per pinna, 15-60 mm long; shrub 10-20 dm tall; [exotic species of urban and suburban areas]; [section Androcallis]
 ⇒ Calliandra haematocephala var. haematocephala
1
Flower heads 2-3.5 cm in diameter, with 2-8 flowers per head; pinnae 1-3 pairs per leaf; leaflets 5-10 pairs per pinna, 3-7 mm long; shrub or suffrutescent herb 1-6 dm tall; [native species of TX Coastal Plain]; [section Septentrionales]
  2
Flowers 1-2 (-3) per head; pinnae (1-) 2-3 pairs per leaf; virgate (wandlike) suffrutescent herb, with an obvious main stem and short side branches
 ⇒ Calliandra biflora
  2
Flowers (2-) 6-8 per head; pinnae 1 (-2) pair per leaf; gnarled low shrub with profuse and complex branching
 ⇒ Calliandra eriophylla