서양개물통이-[정명] Parietaria pensylvanica Muhl. ex Willd.

Engler	Urticaceae (쐐기풀과)	Parietaria (개물통이속)
APG Ⅳ	Urticaceae (쐐기풀과)
[정명] Parietaria pensylvanica Muhl. ex Willd.

 

서양개물통이

 

Pennsylvania pellitory (추천명)

국가표준식물목록 > 식물명검색 > 상세검색 (nature.go.kr)

Description: This annual plant is about ½–1½' tall and usually unbranched. The central stem is green, 4-angled, and pubescent or hairy. The alternate leaves are up to 3½" long and ¾" across. They are lanceolate, finely pubescent, and smooth or slightly undulate along the margins. Near the base of the upper surface of each leaf, there is a major vein and 2 sides veins that are clearly visible. At the axils of the middle to upper leaves, there are small clusters of bracts and flowers. Each flower is surrounded by several green linear bracts that are hairy or pubescent; these bracts are about 1/6" (4.5 mm.) in length and they are longer than the flowers. The green flowers are staminate (male), pistillate (female), or perfect (male & female). These different kinds of flowers can appear together in the same clusters. All of these flowers have 4 green sepals and no petals. Each staminate flower has 4 stamens, while each female flower has a superior ovary with a style. The perfect flowers have both types of reproductive organs. The blooming period occurs during the summer and lasts about 2-3 months. Cross-pollination of the flowers is by the wind. Each flower with an ovary develops a single ovoid achene. The root system consists of a tuft of fibrous roots. This plant reproduces by reseeding itself and it often forms colonies.

Pennsylvania Pellitory (Parietaria pensylvanica) (illinoiswildflowers.info)

Parietaria pensylvanica (Pennsylvania pellitory): Go Botany (nativeplanttrust.org)

 

https://youtu.be/WpBJDxEFydE?t=480