Distribution of Rare Plants- Ulsan, Busan, Yangsan

Add time:09/05/2019    Source:sciencedirect.com

A total of 15 rare plant species, including CR species of Abelia spathulata Siebold & Zucc., Tricularia yakusimensis Masam., Wikstroemia ganpi (Siebold & Zucc.) Maxim., EN species of Jeffersonia dubia (Maxim.) Benth. & Hook.f., Hololeion maximowiczii Kitam., Deutzia paniculata Nakai, VU species of Drosera rotundifolia L., Pogonia japonica Rchb.f., Euphorbia fauriei H. Lev. & Vaniot, LC species of Iris ensata var. spontanea (Makino) Nakai, Lysimachia coreana Nakai, Iris ensata var. spontanea (Makino) Nakai, Utricularia racemosa Wall. and DD species of Veronica pusanensis Y. Lee and Glaux maritima var. obtusifolia Fernald, were observed during the study conducted on the distribution of rare plant species in the Ulsan·Busan·Yangsan region. Of the 15 taxa, 3 were trees and 12 were herbs. 6 taxa (Tricularia yakusimensis Masam., Hololeion maximowiczii Kitam., Drosera rotundifolia L., Pogonia japonica Rchb.f., Iris ensata var. spontanea (Makino) Nakai, Utricularia racemosa Wall.) were those found in wetlands, 4 taxa (Wikstroemia ganpi (Siebold & Zucc.) Maxim., Jeffersonia dubia (Maxim.) Benth. & Hook.f., Lysimachia coreana Nakai, Iris ensata var. spontanea (Makino) Nakai) on mountain slopes, 3 taxa (Euphorbia fauriei H. Lev. & Vaniot, Veronica pusanensis Y. Lee, Glaux maritima var. obtusifolia Fernald) in the coastal region, and 2 taxa (Abelia spathulata Siebold & Zucc., Deutzia paniculata Nakai) in the valley area. In the case of rare plant species found in wetlands, there has been damage caused by coast elevation, forest road construction and farming, and in the case of other rare plant species, there has been damage caused by developments and other detrimental factors. Wikstroemia ganpi (Siebold & Zucc.) Maxim. and Veronica pusanensis Y. Lee are especially in need of protective measures, since their habitat is decreasing and they are being damaged via picking.

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