One developed leaf, maximum of one pair of fronds
No leaf has more than two pairs of fronds
No leaf has more than four pairs of fronds
At least one leaf has more than 4 pairs of fronds

One developed leaf, maximum of one pair of fronds
No leaf has more than two pairs of fronds
No leaf has more than four pairs of fronds
At least one leaf has more than 4 pairs of fronds

One developed leaf, maximum of one pair of fronds
No leaf has more than two pairs of fronds
No leaf has more than four pairs of fronds
At least one leaf has more than 4 pairs of fronds

Adults: at least one mature frond bearing ripe sori

20th percentile (up to 0.2 mm stem height)
40th percentile (up to 0.6 mm stem height)
60th percentile (up to 1.154 mm stem height)
80th percentile (up to 1.702 mm stem height)
100th percentile (>1.702 mm stem height)

Damaged (too highly damaged by herbivores to measure leaflet width accurately)

Large veg: shoot heigth >20cm (potentially reproductive)

Seeds
S1: Sterile total leaf width <0.8cm
S2: Sterile total leaf width = 0.8-1.0cm
S3: Sterile total leaf width = 2.0-3.8cm
S4: Sterile total leaf width = 3.8-6.5cm
S5: Sterile total leaf width = 6.5-10cm
S6: Sterile total leaf width = 10-15cm
F5: Flowering total leaf width = 6.5-10cm
F6: Flowering total leaf width = 10-15cm
F7: Flowering total leaf width >15cm
V3: Vegetative total leaf width = 2.0-3.8cm
V4: Vegetative total leaf width = 3.8-6.5cm
V5: Vegetative total leaf width = 6.5-10cm
V6: Vegetative total leaf width = 10-15cm
VF: Flowering vegetative recruits of all sizes

Seeds
S1: Sterile total leaf width <0.8cm
S2: Sterile total leaf width = 0.8-1.0cm
S3: Sterile total leaf width = 2.0-3.8cm
S4: Sterile total leaf width = 3.8-6.5cm
S5: Sterile total leaf width = 6.5-10cm
S6: Sterile total leaf width = 10-15cm
F5: Flowering total leaf width = 6.5-10cm
F6: Flowering total leaf width = 10-15cm
F7: Flowering total leaf width >15cm
V3: Vegetative total leaf width = 2.0-3.8cm
V4: Vegetative total leaf width = 3.8-6.5cm
V5: Vegetative total leaf width = 6.5-10cm
V6: Vegetative total leaf width = 10-15cm
VF: Flowering vegetative recruits of all sizes