Ульяновская губерния. Из гербария Экспедиции А.П. Шенникова. Equisetum arvense L. f. agreste Kl. Сенгилеевск. уезд. с. Русск. Бектяжка. Пойма Волги, островн. луг. 1914.VIII.2. Опр. А.П. Шенников. Plantae gub. Uljanowsk
Landscape in location of collection: пойма р. ВолгаHabitat / plant community in location of collecting: островной лугCoordinates (geographic position):53° 45′ 54.19″ N, 48° 51′ 1.59″ E ±6000 mRecord creation: 2023-07-17, Denis Melnikov, PhotoScan D2.Citation: Specimen LE 01240992 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01240992
Equisetum arvense L. Мордовская АССР. Большеберезниковский р-н. Симкинское лесничество. К югу от д. Симкино. Левый берег р. Суры, песок. 13.6.1979. А. Бобырев, А. Пальчин
Landscape in location of collection: левый берег рекиSubstrate in collecting location: песокCoordinates (geographic position):54° 10′ 41.44″ N, 46° 10′ 59.51″ E ±9000 mRecord creation: 2023-07-17, Denis Melnikov, PhotoScan D2.Citation: Specimen LE 01240991 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01240991
Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son village, around point 20°46’02.0N 104°37’03.1E. Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1100-1050 m a.s.l. Treelet 4-5 m tall on very steep rocky slopes and cliffs. Fruits green. Not common.
Xiangkhouang Prov., Peak Distr., Oran village, around point 19°38’53”N 103°23’12”E. Primary and secondary broad-leaved evergreen dry forest on shale sandstone slopes and along ridge edge at elev. about 1750-1850 m a.s.l. Tree 4 m tall. Flowers white with pink tint. Occasional.
Houphan Prov., Viengxay Distr., Xieng Luong village, around point 20°22'06.1''N 104°17'18.6''E. Primary and secondary broad-leaved evergreen dry forest on very steep rocky slopes of highly eroded mountains composed by solid marble-like limestone at elev. 600-700 m a.s.l. Tree 4-6 m tall on mountain top. Flowers yellow, ovary green, stigma yellow. Not
Houphan Prov., Viengxay Distr., Xieng Luong village, around point 20°22'06.1''N 104°17'18.6''E. Primary and secondary broad-leaved evergreen dry forest on very steep rocky slopes of highly eroded mountains composed by solid marble-like limestone at elev. 600-700 m a.s.l. Tree 4-6 m tall on mountain top. Flowers yellow, ovary green, stigma yellow. Not common.