Table 1 Endangered Sidalcea species (status information is from NatureServe Explorer [23]
Scientific name [Common name] | Status | Distribution | Notes |
|---|---|---|---|
Sidalcea celata (Jeps.) S.R.Hill [Dwarf checkermallow] | G2 – imperilled | California | Known only from three counties in northern California |
Sidalcea covillei Greene [Owens Valley checkermallow] | G3 – vulnerable | California | Endemic to Owens Valley, California |
Sidalcea gigantea G.Clifton, R.E.Buck & S.R.Hill | G3 – vulnerable | California | Recently described species |
Sidalcea hendersonii S.Wats. [Henderson’s checkermallow] | G3 – vulnerable | Oregon, Washington, British Columbia, Alaska | Limited number of populations (c.60–70) although widely distributed |
Sidalcea hickmanii Greene [Chaparral checkerbloom] | G3 – vulnerable | California | Restricted to the coast ranges of California |
Sidalcea hirsuta A.Gray [Hairy checkermallow] | G3 – vulnerable | California | |
Sidalcea hirtipes C.L.Hitchc. [Bristly-stem checkerbloom] | G2 – imperilled | Oregon, Washington | |
Sidalcea keckii Wiggins [Keck’s checkermallow] | G2 – imperilled | California | Known only from two counties in coastal California |
Sidalcea malachroides (Hook. & Arn.) Gray [Mapleleaf checkerbloom] | G3 – vulnerable | California, Oregon | Coast region |
Sidalcea multifida Greene [Cutleaf checkermallow] | G3 – vulnerable | California, Nevada | |
Sidalcea nelsoniana Piper [Nelson’s checkermallow] | G2 – imperilled | Oregon, Washington | Largely restricted to the Willamette Valley of Oregon |
Sidalcea pedata Gray [Pedate checkermallow] | G1 – critically imperilled | California | Known only from c. 10 sites |
Sidalcea ranunculacea Greene [Marsh checkermallow] | G3 - vulnerable | California | |
Sidalcea robusta Heller ex Roush [Butte County checkermallow] | G2 – imperilled | California | Known only from approximately 20 sites |
Sidalcea setosa C.L.Hitchc. [Edgewood Checker-mallow] | G3 - vulnerable | California, Oregon | |
Sidalcea stipularis J.T.Howell & True [Scadden Flat checkerbloom] | G1 – critically imperilled | California | Known only from two sites |