Each species on the list of vulnerable, endangered or at risk plants of southern Québec has been ranked according to the criteria presented below. The species with the highest points (greater than 18) are those targeted by the project.
For example, Polemonium vanbruntiae has a rank of 26 because the species has the following characteristics:
- Global rank: 2 = G4 or G3
- National rank: 3 = N2 or N1
- Type of distribution : 2 = sporadic
- Status of rarity: 3 = endangered
- Conservation rank: 3 = S1 or S2
- Taxonomical rarity: 3 = Sum of genus + species > 16
- Vegetative aspect: 3 = Very interesting
- Reproductive aspect: 3 = Very interesting
- Habitat: 4 = Humid areas, sandy shores, outcrops, screes, bogs
Legend of point attribution for classifying species
(1 is the lowest possible value)
Global rank
1 = G5
2 = G4 or G3
3 = G2 or G1
Type of distribution
1 = peripheral
2 = sporadic
3 = endemic or split
Conservation rank
1 = SX or SH
2 = S3
3 = S1 or S2
Vegetative aspect
1 = No interest
2 = Interesting
3 = Very interesting
National rank
1 = N5
2 = N4 or N3
3 = N2 or N1
Status of rarity
1 = at risk
2 = vulnerable
3 = endangered
Taxonomical rarity (number of genera and species related to the family)
1 = Sum of genus + species > 16
2 = Sum of genus + species between 9 and 16
3 = Sum of genus + species < 8
Reproductive aspect
1 = No interest
2 = Interesting
3 = Very interesting
Habitat
1 = Exposed sandy areas, anthropic land
2 = Deciduous forest
3 = Mixed or coniferous forest
4 = Humid areas, sandy shores, outcrops, screes, bogs
5 = Fens, open water herbarium
6 = Estuarine habitats