that such a cactus

what is such a green cactus ... with thorns Cacti are succulent plants whose fleshy stems are covered with groups of downy hairs. Almost all cacti do not have normal leaves, most have thorns. They…

What is the vegetation period in plants?

What is the growing season for plants? The period of development, active growth. This question has already been here http://otvet.mail.ru/question/17180703 Vegetation period (from Latin vegetatio revitalization, growth) is a period of the year in which growth and development are possible ...