listed species are those with: 1) 5 or fewer extant sites, or 2) fewer than 1,000 individuals, or 3) restricted to fewer than 4 U.S.G.S. 7 ½ minute topographical maps, or 4) species listed as endangered by U.S. Department of Interior.
State Rarity Rank:SH
A State Rarity Rank of SH means: This plant is only historically known from New York State, typically with the last plant observed over 20 years ago. Many SH plants have not been seen in 50-100 years.
Global Rarity Rank:G5T5
A Global Rarity Rank of G5T5 means: Secure globally - Both the species as a whole and the subspecies/variety are common in the world; widespread and abundant (but may be rare in some parts of its range).
Please cite this page as:
New York Natural Heritage Program. 2015. Online Conservation Guide for Houstonia purpurea var. calycosa. Available from: http://acris.nynhp.org/guide.php?id=9331. Accessed March 24th, 2017.