Sarracenia purpurea (2)

 

 

민트님의 지적에 따라 학명 Sarracenia leucophylla을 수정한다 

학명 : Sarracenia purpurea L.

분류 : Sarraceniaceae

 

국표식 등재 국명 : 자주사라세니아

사진 : 2022.01.27 창경궁 온실

 

 

 

 

 

아래 : 2023.02.09 서울식물원

 

자주색이 전혀 없어 이상하지민 표찰에 있는대로 올린다

 

 

아래 것은 좀 떨어진 장소에 있는 것으로 포충낭이 자주색이다

 

 

 

 

 

 

 

 

영어 위키

 

Sarracenia purpurea L.

 

Like other species of Sarracenia, S. purpurea obtains most of its nutrients through prey capture.[1] However, prey acquisition is said to be inefficient, with less than 1% of the visiting prey captured within the pitcher.[2] Even so, anecdotal evidence by growers often shows that pitchers quickly fill up with prey during the warm summer months. Prey fall into the pitcher and drown in the rainwater that collects in the base of each leaf.

 

Prey items, such as flies, ants, spiders, and even moths or hornets, are then digested by an invertebrate community, made up mostly by the mosquito Wyeomyia smithii and the midge Metriocnemus knabi.[citation needed] The relationship between W. smithii and S. purpurea is an example of commensalism.[3]

 

S. purpurea also traps juvenile spotted salamanders with enough regularity that nearly 20% of surveyed plants were found to contain one or more salamanders in a 2019 study. The salamanders were observed to die within three to nineteen days, and may be killed as the small pools of water in the plant are heated by the sun. A single salamander could provide hundreds to thousands of times the nutrients of invertebrate prey, but it is not known how efficiently S. purpurea is able to digest them.[4]

 

Protists, rotifers (including Habrotrocha rosa), and bacteria form the base of inquiline food web that shreds and mineralizes available prey, making nutrients available to the plant.[5][6][7] New pitcher leaves do produce digestive enzymes such as hydrolases and proteases, but as the individual leaves get older into their second year, digestion of prey material is aided by the community of bacteria that live within the pitchers.[8][9]

 

Distribution

Its range includes the Eastern seaboard, the Great Lakes region, all of Canada (except Nunavut and Yukon), Washington state, and Alaska.[10] That makes it the most common and broadly distributed pitcher plant, as well as the only member of the genus that inhabits cold temperate climates. It is endangered or vulnerable over much of the southern part of its range.[11] The species is the floral emblem of the Canadian province of Newfoundland and Labrador. Most varieties along the Gulf Coast of the United States that were once identified as Sarracenia purpurea have since been reclassified as Sarracenia rosea.

 

It is an introduced and naturalized species in Europe and the northwestern US.[12] It is found in habitats of the native carnivorous species Darlingtonia californica, in the Klamath Mountains and northern Sierra Nevada.[13] The plant has also been recorded in Washington state, Austria, the Czech Republic, Denmark, France, Germany, Ireland, Sweden, Switzerland, and the United Kingdom.[12][14] In Britain and Ireland purple pitcher plant have invaded heather-rich peatbogs in Britain and Ireland and with the mild climate can grow in large numbers at the expense of local flora. Peatbogs are also under threat as the Sphagnum mosses do not grow near the pitcher plant.[15][16]