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Many monocots are herbaceous and do not have the ability to increase the width of a stem (secondary growth) via the same kind of vascular cambium found in non-monocot woody plants. [34] However, some monocots do have secondary growth; because this does not arise from a single vascular cambium producing xylem inwards and phloem outwards, it is ...
Asparagales (asparagoid lilies) is an order of plants in modern classification systems such as the Angiosperm Phylogeny Group (APG) and the Angiosperm Phylogeny Web.The order takes its name from the type family Asparagaceae and is placed in the monocots amongst the lilioid monocots.
Cotyledon from a Judas-tree (Cercis siliquastrum, a dicot) seedling Comparison of a monocot and dicot sprouting. The visible part of the monocot plant (left) is actually the first true leaf produced from the meristem; the cotyledon itself remains within the seed Schematic of epigeal vs hypogeal germination Peanut seeds split in half, showing the embryos with cotyledons and primordial root Two ...
Helianthus stem in section. The cells of the vascular cambium (F) divide to form phloem on the outside, located beneath the bundle cap (E), and xylem (D) on the inside. Most of the vascular cambium is here in vascular bundles (ovals of phloem and xylem together) but it is starting to join these up as at point F between the bundles.
A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves , flowers and fruits , transports water and dissolved substances between the roots and the shoots in the xylem and phloem , engages in photosynthesis, stores nutrients, and produces new living tissue. [ 1 ]
In botany, a cortex is an outer layer of a stem or root in a vascular plant, lying below the epidermis but outside of the vascular bundles. [1] The cortex is composed mostly of large thin-walled parenchyma cells of the ground tissue system and shows little to no structural differentiation. [ 2 ]
The same dictionary defines "herbaceous" as: "Of the nature of a herb; esp. not forming a woody stem but dying down to the root each year"; "BOTANY Resembling a leaf in colour or texture. Opp. scarious". [4] Botanical sources differ from each other on the definition of "herb".
Agave (/ ə ˈ ɡ ɑː v i /; also UK: / ə ˈ ɡ eɪ v i /; [3] Anglo-Hispanic, also US: / ə ˈ ɡ ɑː v eɪ /) [4] is a genus of monocots native to the arid regions of the Americas.The genus is primarily known for its succulent and xerophytic species that typically form large rosettes of strong, fleshy leaves.