Hudsonia L. (Cistaceae)
Hudsonia is represented by two species in North Carolina. Hudsonia montana is federally listed (Fed T, S1 G1).
Hudsonia tomentosa is state listed (State T, S2 G5). No other taxa are listed or proposed for listing.
Federally listed taxon—
Hudsonia montana (Fed T, State T | S1 G1)
Habitat. Outcrop ecotones.
Range. Restricted to Burke and McDowell counties.
Similar taxa. Hypericum species may look deceivingly similar in flower,
however species of Hudsonia have alternate leaves, whereas species of Hypericum have opposite leaves.
Additional resources. NHP | Recovery plan | 5-yr review
Key to Hudsonia in North Carolina
Key adapted from Radford et al. (1968) and Weakley (2008). Photos by Krings, unless otherwise indicated. Line drawings from Britton & Brown (1913). Maps courtesy of USDA PLANTS and the North Carolina Natural Heritage Program.
1. Leaves 5–7 (–10.1) mm long, subulate, glabrate to sparsely villous; pedicels 4–10 mm long; stamens 20–30...H. montana* 
Habitat of Hudsonia montana (Photo: Krings)
Hudsonia montana (Photo: Krings)
Hudsonia montana (Photo: Krings)
Hudsonia montana (Photo: Krings)
Hudsonia montana (Photo: Krings)
Hudsonia montana (Photo: Krings)
Hudsonia montana (Photo: Krings)
Hudsonia montana*
(rare [Fed T, S1 G1]; shallow, sandy soil of felsic or quartzite rock ledges; Mt; early summer)
1’. Leaves 1–3 mm long, ovate, densely tomentose, appressed to the stem and overlapping; pedicels 0–1 (–3) mm long; stamens 8–20...H. tomentosa
Habitat of Hudsonia tomentosa: Dune field, Dare Co. (Photo: Krings)
Habitat of Hudsonia tomentosa: edge of dune field, Dare Co. (Photo: Krings)
Habit Hudsonia tomentosa (Photo: Krings)
Habit of Hudsonia tomentosa (Photo: Krings)
Pubescent leaves Hudsonia tomentosa (Photo: Krings)
Pubescent leaves of Hudsonia tomentosa (Photo: Krings)
Flower of Hudsonia tomentosa (Photo: Krings)
Hudsonia tomentosa
(rare [State T, S2 G5]; dunes, sandflats, sandy powerline cuts; northeastern CP; year round, flowering spring)
