The Dogbane is closely related to the Milkweed and has a sticky, milky juice. It is a leafy and widely branching perennial, and grows from one to four feet high from a horizontal rootstock. The smooth stalk is usually stained on one side with red. The short-stemmed, toothless, oval leaves are round-pointed at either end, and are arranged in opposite pairs. They are smooth above, and paler and somewhat hairy beneath. The small, fragrant, bell-shaped flowers have five spreading, recurved lobes united in a tube. They are delicate pink in colour, with veinings of a deeper shade. The five yellowish stamens are united about the stigma. The nodding flowers all open at one time, and are borne in small, loose clusters on the ends of the branches. The slender, twin seed pods are four inches in length. During July great numbers of our most iridescent beetles are attracted to the foliage of the Dogbane, and when thus found, they furnish a sure means for identifying this plant. This species was considered at one time to be poisonous to dogs. It is common during June and July, along roadsides and in fields and thickets from Georgia, Nebraska, and Arizona, far north into Canada. Bitter-root is the state flower of Montana.