Vegetative key to the families
Vegetative Key Vegetative key to the families
PHYLLODES present with a raised or depressed extra-floral nectary on the adaxial edge, hanging or standing with the nectary uppermost. (A few species of Acacia with exceptional additional structures are included in the key below) (Mimosoideae Fabaceae
Flowers irregular
Posterior petal inside lateral ones Caesalpinioideae
Prickles or thorns present
Scrambling shrub covered with recurved prickles Caesalpinia
Woody, scrambling shrub; branches and racemes ± tomentose or pubescent, with scattered recurved prickles. Pinnae 6–10 pairs per leaf; leaflets 8–12 pairs per pinna, oblong, rarely more than 12mm long. Flowers numerous in axillary and terminal racemes 12–15 cm long. Corolla yellow. Filaments less than 2 cm long. Dundas; Wollongong. Introd. from Queensland and Indonesia. Thorny Poinciana Caesalpinia decapetala
Straggling shrub; branches glandular pubescent, without prickles. Pinnae 7–14 pairs per leaf; leaflets 7–11 pairs per pinna, elliptic to oblong, 4–10 mm long. Flowers in terminal racemes up to 15 cm long. Corolla yellow. Fillaments more than 5 cm long. Occasionally naturalized. Bird-of-paradise Flower Caesalpinia gillesii