Synthetic auxins are widely used in agriculture and horticulture axil the angle between the upper surface of a branch or leafstalk and the stem from which it grows axis the main central part of a plant, typically consisting of the stem and root, from which secondary branches and other parts develop berry any of various small edible fruits such as the blackberry and strawberry bulb a rounded organ of vegetative reproduction in plants such as the tulip and onion: a flattened stem bearing a central shoot surrounded by fleshy nutritive inner leaves and thin brown outer leaves calyx the sepals of a flower collectively, forming the outer floral envelope that protects the developing flower bud cambium a meristem that increases the girth of stems and roots by producing additional xylem and phloem carpel the female reproductive organ of flowering plants, consisting of an ovary, style (sometimes absent), and stigma.
Abscission the separation of leaves, branches, flowers, and bark from plants by the formation of an abscission layer androecium the stamens of a flowering plant collectively androgynous having male and female flowers in the same inflorescence, as cuckoo pint anther the terminal part of a stamen consisting usually of two lobes each containing two sacs in which the pollen matures archegonium a female sex organ, occurring in mosses, spore-bearing vascular plants, and gymnosperms, that produces a single egg cell in its swollen base auxin any of various plant hormones, such as indoleacetic acid, that promote growth and control fruit and flower development.
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