''Campanula americana'', the American bellflower, or tall bellflower, is a bellflower native to eastern North America. Tall bellflowers can be

annual Annual may refer to: *Annual publication, periodical publications appearing regularly once per year ** Yearbook ** Literary annual *Annual plant *Annual report *Annual giving *Annual, Morocco, a settlement in northeastern Morocco *Annuals (band), ...

biennial Biennial means (an event) lasting for two years or occurring every two years. The related term biennium is used in reference to a period of two years. In particular, it can refer to: * Biennial plant, a plant which blooms in its second year and th ...

with a varying life-history with seeds germinating in the fall producing

annual plants An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies. The length of growing seasons and period in which they take place vary according to geographical ...

and spring-germinating seeds producing

biennial plants A biennial plant is a flowering plant that, generally in a temperate climate, takes two years to complete its biological life cycle. Life cycle In its first year, the biennal plant undergoes primary growth, during which its vegetative structures ...

. Long-tongued bees are the primary pollinators, including ''

Megachile campanulae ''Megachile campanulae'', known as the bellflower resin bee, is a species of bee in the family Megachilidae. Described in 1903, these solitary bees are native to eastern North America. Studies in 2013 placed them among the first insect species ...

,'' but halictid bees, butterflies, and skippers may also act as pollinators. Tall Bellflowers do not generally self-pollinate. Some authorities, including the

USDA The United States Department of Agriculture (USDA) is the federal executive department responsible for developing and executing federal laws related to farming, forestry, rural economic development, and food. It aims to meet the needs of com ...

PLANTS database, consider the name ''Campanulastrum americanum'' to be the accepted name for this species.

Description

Morphology

A large central flower stem shoots up from a

basal rosette In botany, a rosette is a circular arrangement of leaves or of structures resembling leaves. In flowering plants, rosettes usually sit near the soil. Their structure is an example of a modified stem in which the internode gaps between the lea ...

, that terminates in a raceme 1/2-2' long, with the plant's overall height being 3-6'. The central stem is light green, slightly grooved, and hairy. The primary root system is a

taproot A taproot is a large, central, and dominant root from which other roots sprout laterally. Typically a taproot is somewhat straight and very thick, is tapering in shape, and grows directly downward. In some plants, such as the carrot, the taproo ...

. It has alternate leaves 3-6" in length, that are lance-shaped to ovate-elliptic in shape, with rough/toothed edges. Tall bellflower

flowers A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanism ...

are light blue to violet with a pale white ring at the throat, which primarily bloom in July and August. It is an unusual bellflower in that its flowers are flat. Flowers are approximately 1" across. Its

pistils Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) '' pistils' ...

have a recurved

style Style is a manner of doing or presenting things and may refer to: * Architectural style, the features that make a building or structure historically identifiable * Design, the process of creating something * Fashion, a prevailing mode of clothing ...

and a three lobed anther and each flower has 5 stamen, 5 petals, and 5 sepals. The

ovaries The ovary is an organ in the female reproductive system that produces an ovum. When released, this travels down the fallopian tube into the uterus, where it may become fertilized by a sperm. There is an ovary () found on each side of the body. T ...

develop into 5 angled flat topped seed pods.

Distribution and habitat

Tall bellflowers grow from the

Great Lakes The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lak ...

region south to

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

and from the Dakotas east to New York. They thrive in partial shade and grow along woodland edges, in open woods, shaded meadows, streambanks and ditches.

References

{{Taxonbar, from1=Q1877441, from2=Q58380375

americana Americana may refer to: *Americana (music), a genre or style of American music *Americana (culture), artifacts of the culture of the United States Film, radio and television * ''Americana'' (1992 TV series), a documentary series presented by J ...

Flora of North America Plants described in 1753 Taxa named by Carl Linnaeus