Silene latifolia ssp. alba
Synonyms: Lychnis alba, Lychnis latifolia ssp. alba, Lychnis latifolia var. alba, Lychnis x loveae, Lychnis vespertina, Melandrium album, Silene alba, Silene latifolia, Silene pratensis
White campion is an attractive although somehwhat weedy species which is similar in many respects to red campion. It is a biennial or short-lived perennial with several simple stems from 50-110 cm high. The herbage is hairy below becoming glandular in the inflorescence. The basal leavs are lanceolate to oblanceolate in shape, measuring up to 10 cm long and 2 cm wide. with slender to broad petioles. There are 6-9 pairs of stem leaves with the lower ones often larger than the basal leaves. The upper stem leaves are reduced in size and often lack stems.
The inflorescence is a spreading, leafy-bracteate cyme with several to many white flowers. The calyx ranges from 15-20 mm long with 5 lobes The calyx is tubular in shape and somewhat inflated as the flower blooms. 10 prominent green nerves or lines run the length of the calyx. The exposed lobes of the petals are 7-10 mm long, each narrowly obovate in shape and notched deeply (to about midlength) at the tip. The petals are sharply reflexed outwards at a right angle from the axis of the calyx. There are 5 styles.
White campion is a somewhat weedy species which may be found along roadside right-of-ways and in disturbed fields, as well as in fields which appear undisturbed.
White campion is a Eurpean plant now found across much of North America.
In the Columbia River Gorge it may be found between the elevations of 0'-400' from Troutdale, OR east to Hood River, OR.