Protologue Description: Hudsonia ericoides L. ssp. andersonii Nickerson & J. Skog subsp. nov.
Fruticulus globosus dumosus semervirens, ad 2 dm altus. Folia viridula linearia 3-5.5 mm long glabrata vel glabra. Flores axillares lutei; pedicelli graciles 11-16 mm longi. Calyx persistens. Ovarium hirtellum vel hirsutum. Capsella plerumque trisperma.

Small globose, bushy-branched, evergreen shrub, to 2 dm tall. Leaves greenish, linear, 3-5.5 mm long, glabrate to glabrous. Flowers axillary, yellow; pedicels slender, 11-16 mm long. Calyx persistent. Ovary hirsutellus to hirsute. Capules usually 3-seeded.

Ecological preferences: Shade tolerant; argillaceous shallow soil not subject to sea spray. Known extant population on headlands 30 m above sea level, south shore of Purcell's Cove, Nova Scotia.

Type collection: troop 85, Purcell's Cove, Nova Scotia, August 1966 (GH). Paratype collections: Nickerson 2908, 2909, Purcell's Cove, Nova Scotia, August 1968; Donley 1320, Queens Co., Nova Scotia 1958 (ACAD, BH, CONN, DAO, FLAS, MO, NCU, NEBC, NHA, NY, US and Tufts University). Paratypes from areas with no apparent extant populations: Redfield 11695, Martha's Vineyard, Massachusetts, 1885. 10004, Nantucket Island, Massachusetts, 1885. fernald Cape Popham, Maine, 1894. fernald and Long 9946 (in part) Wareham Massachusetts, 1913.