New York Natural Heritage Program
Yellow Mountain-saxifrage
Saxifraga aizoides L.
Saxifraga aizodes Troy Weldy
Family: Saxifrage Family (Saxifragaceae)

State Protection: Threatened
listed species are those with: 1) 6 to fewer than 20 extant sites, or 2) 1,000 to fewer than 3,000 individuals, or 3) restricted to not less than 4 or more than 7 U.S.G.S. 7 minute topographical maps, or 4) listed as threatened by U.S. Department of Interior.

Federal Protection: Not Listed

State Rarity Rank: S2
A State Rarity Rank of S2 means: This plant is threatened/imperiled in New York because of rarity (typically 6-20 populations or few remaining individuals) or is vulnerable to extirpation from New York due to biological factors.

Global Rarity Rank: G5
A Global Rarity Rank of G5 means: This species is demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.

Did you know?
Yellow mountain-saxifrage almost always grows in the company of butterwort and birds-eye primrose. All three of them prefer the cold, wet, shale cliff environment. The genus name Saxifraga is a combination of the words saxum, a stone, and frangere, to break, referring to the granular bulblets of European plants which were supposed to dissolve kidney stones. The species name comes from its resemblance to the succulent plants of the genus Aizoon of the old world.

State Ranking Justification [-]
There are nine known populations of this plant. Most of these populations are on well-protected cliffs, but some cliffs may be subject to natural or artificial sloughing. This plant has a limited range, and an even greater limited habitat. As a plant at the southern limit of its range, it has always likely been rare in New York.

Short-term Trends [-]

Long-term Trends [-]