New York Natural Heritage Program
Seaside Bulrush
Bolboschoenus maritimus ssp. paludosus (A. Nelson) T. Koyama
Monocots
Family: Sedge Family (Cyperaceae)

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?
The genus name is derived from the Greek "bolbo", a bulb, and "schoenus", a rush. It refers to the presence of corms in this genus. The Flora of North America treatment of the species states that it is likely that some populations of both subspecies are introduced from Europe (Flora of North America Editorial Committee 2002).

State Ranking Justification [-]
There are 10 existing populations but half of them are small and threatened by Phragmites. There are 11 additional populations from the early 1900s that have not been resurveyed.

Short-term Trends [-]

Long-term Trends [-]