Hedera Pastuchovii (Hedera pastuchovii Woronow) A Rare and Economically Important Plant of the Flora of Georgia

Abstract

This paper discusses the distribution, natural renewal, and various bioecological features of Pastukhov's ivy (Hedera pastuchovii), a preserved Hyrcanian-Caucasian (Hircanian-East Caucasian) dendroflora relic from the Tertiary period. It also explores the plant's participation in phytocenoses, providing insights into its ecological role. The study was conducted on the northern slopes of the Saguramo ridge, as well as on the moderately moistened soils of the southern exposure, ranging from 800-1400 m above sea level. Additionally, observations were made in the Lagodekhi Nature Reserve, specifically on the northwestern and dry slopes of the southern exposure at an altitude of 500-1200 m above sea level. The findings highlight the rarity of Pastukhov's ivy in the Saguramo range, where it occurs in small groups within shady forests. Vegetative propagation, through the rooting of shoots on the ground, is the primary means of reproduction. In contrast, the Lagodekhi Nature Reserve features specimens that propagate by seeds. Sprouts primarily emerge in shaded soils with limited grass cover. The paper emphasizes the importance of conserving Hedera pastuchovii in situ and ex situ for its survival.