Shepherdia canadensis (L.) Nutt.
Habitat: Calcareous rocks and banks [Non-tidal rivershore (non-forested, seasonally wet)]
Range: Newfoundland to Alaska, south to central Maine, west to northern Minnesota, South Dakota, and New Mexico.
Aids to Identification: This opposite-leaved shrub grows 1-3 meters tall. Leaves are ovate to lanceolate, 3-7 cm in length, and covered with small, silver or rust-colored scales. The greenish-yellow flowers grow in small clusters. Its fruits are berry-like, 6-9 mm in length, and red or yellow in color.
Ecological characteristics: The only known occurrence of this species in Maine is from a very steep riverbank cliff.
Phenology: Flowers April - May, with the appearance of the leaves.
Synonyms: Elaeagnus canadensis (L.) A. Nels.; Hippophae canadensis L.; Lepargyrea canadensis (L.) Greene.
Known Distribution in Maine: This rare plant has been documented from a total of 1 town(s) in the following county(ies): Somerset.
Reason(s) for rarity: At southern limit of range; calcareous habitat naturally scarce.
Conservation considerations: The one Maine population apparently consists of a single individual that has persisted in the same spot for decades.