Baneberries are erect native perennial woodland plants, 1 to 2 1/2 feet high.
The leaves of A. rubra are oblong coarsely toothed, alternate, 2 to 3 times 3-parted leaflets, similar to the White Baneberry except for some hair usually found on the underside. The leaves all grow from the upper part of the stems leaving the lower stems bare and exposed under the leaves.
The inflorescence is a rounded cluster of small white 4 to 10 part flowers on a long stalk, pyramidal in shape, but about as long as wide; one cluster per stem.
Flowers are bisexual. The cream colored flower petals number 4 to 10, are ovate with a very tapered to clawed base. These fall off early leaving the stamens pointing outward in multiple directions. Stamens can number 15 to 50, and have white long filaments and cream anthers. There is one pistil with the style either very short or absent. The sepals of calyx are whitish-green in color, and are not persistent on the fruit.
Fruit: The lustrous berries may occasionally be white (photo page), but on this species, be they red or white, are each on a very slender greenish stalk which is dull green to brown at maturity, The fleshy berries are oval in shape and contain 8 or more hard seeds that are cone shaped to wedge shaped, dark brown to reddish brown in color. Seeds are difficult to start as they must have a cold moist period followed by a warm moist period and another cold moist period, which means if sowed outside, they will not germinate until the 2nd year.
HAZARD: Baneberry plants are poisonous and the berries are considered especially poisonous. More notes at page bottom.
Habitat: As it is a woodland plant Red Baneberry is found in shady spots of open woods and forests where there is wet to mesic moisture conditions. The root is a woody caudex with fibrous roots. Stems die back to the ground in the fall. The plants locations in the Upland Garden are mostly near Aster Aisle and the Fern Glen. In the Woodland Garden it will be found along shady paths.
Names: The genus name Actaea is the Latin name that was used by Pliny and adopted by Linnaeus. The Latin is thought to come from old Greek, either aktea or akte, for 'elder' which probably refers to a similarity of leaf type with that plant. The species, rubra, is Latin for "red". The common name of baneberry was applied in reference to the poisonous fruit. The author names for the plant classification are: ‘Aiton’ is for William Aiton (1731-1793), Scottish botanist, who succeeded Phillip Miller as superintendent of the Chelsea Physic Garden and then became director of Kew Gardens, where he published Hortus Kewensis, the Garden’s catalogue of plants. His work was revised by ‘Willd.’ who is Carl Ludwig Willdenow (1765-1812), German botanist, a founder of the study of the geographic distribution of plants. He was director and curator of the Botanic Garden of Berlin.
Comparisons: A. rubra is similar to the White Baneberry (Actaea pachypoda Elliot) except there the stalks of the berries are much thicker and red and the flower cluster is more elongated.
Above: The 2 to 3 times, 3-parted leaflets are held high on stiff stems. The long flower stalks arise from the leaf stem.
Below: 1st photo - The inflorescence is a more rounded cluster than those of the White Baneberry. 2nd photo - The jointed stems and leaf stalks - the stem below is free of leaves.
Below: Fruit begins green in color then changing to bright red. Note the thin greenish stalks of each berry which remain green to brownish at maturity - not red. Below: The jointed stems below the leaves.
Below: The wedge shaped baneberry seeds, typical in number obtained from one berry.
Notes: Red Baneberry is indigenous to the Garden area. Eloise Butler catalogued it on May 25, 1907; in addition in 1910 she planted some plants that she obtained in Cokato, MN, and on July 11, 1912 more plants from Foley, MN. This plant was listed on Martha Crone's 1951 inventory of plants in the Garden at that time and she planted seeds in 1953. Susan Wilkins added plants in 2009, '12, and '13. Red Baneberry is native to Minnesota in most counties throughout the state except a few in the SW quadrant. It is found throughout North America except the SE quadrant of the U.S. from Texas east to the coast. A. pachypoda, the White Baneberry, is the only other species of Actaea found in Minnesota.
Medicinal Lore: Tilford (Ref.#39) reports that clinical herbalists have found Red Baneberry useful as a strong antispasmodic. The root is considered a strong alternative to Black Cohosh as a herbal remedy for menstrual cramping and menopausal discomforts. Densmore (Ref.#5), in her study of the Minnesota Chippewa reports the same use but refers to the roots of those plants of the species which bear the white berries. The plants that bear red berries are said to be used for diseases of men. Care had to be taken in any case, as large quantities of baneberry consumed may cause cardiac arrest.
References: Plant characteristics are generally from sources 1A, 32, W2, W3, W7 & W8 plus others as specifically applied. Distribution principally from W1, W2 and 28C. Planting history generally from 1, 4 & 4a. Other sources by specific reference. See Reference List for details.
Identification booklet for most of the flowering forbs and small flowering shrubs of the Eloise Butler Wildflower Garden. Details Here.
Friends of the Wild Flower Garden, Inc. Text and photos are by G. D. Bebeau unless otherwise credited. "www.friendsofthewildflowergarden.org"