The white flowers have a fat, swollen area (calyx) behind petals that have pink veins. The flowers sit in loose bunches on top of the plant. The leaves sit across from each other (opposite) on the stem. They bloom May through August.
When you research information you must cite the reference. Citing for websites is different from citing from books, magazines and periodicals. The style of citing shown here is from the MLA Style Citations (Modern Language Association).
When citing a WEBSITE the general format is as follows.
Author Last Name, First Name(s). "Title: Subtitle of Part of Web Page, if appropriate." Title: Subtitle: Section of Page if appropriate. Sponsoring/Publishing Agency, If Given. Additional significant descriptive information. Date of Electronic Publication or other Date, such as Last Updated. Day Month Year of access < URL >.
Amsel, Sheri. "Bladder Campion" Exploring Nature Educational Resource ©2005-2019. September 16, 2019
< http://www.exploringnature.org/db/view/Bladder-Campion >