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A stem-and-leaf plot of prime numbers under 100 shows that the most frequent tens digits are 0 and 1 while the least is 9. A stem-and-leaf display or stem-and-leaf plot is a device for presenting quantitative data in a graphical format, similar to a histogram, to assist in visualizing the shape of a distribution.
The protoxylem is thus closest to the center of the stem or root, and the metaxylem is closest to the periphery. The stems of seed plants typically have endarch development. [43] Mesarch is used when there is more than one strand of primary xylem in a stem or root, and the xylem develops from the middle of a strand in both directions. The ...
With an opposite leaf arrangement, two leaves arise from the stem at the same level (at the same node), on opposite sides of the stem. An opposite leaf pair can be thought of as a whorl of two leaves. With an alternate (spiral) pattern, each leaf arises at a different point (node) on the stem. Distichous leaf arrangement in Clivia
Natural vegetative propagation is mostly a process found in herbaceous and woody perennial plants, and typically involves structural modifications of the stem, although any horizontal, underground part of a plant (whether stem, leaf, or root) can contribute to vegetative reproduction of a plant.
It is deeply rooted with yellow or red stamens. The plant is known for the sharp prickles on its stem and leaves. The sepals fall off as the flower of this plant grows bigger. It grows in the arid regions of the southern Midwest along roadsides and disturbed pieces of land. Native Americans have long revered this plant for its medicinal and ...
The upper angle between one part of a plant and another, e.g. the stem and a leaf. axile On an axis; of a placenta, on the central axis of the ovary. axillary Borne in or arising from the axil, usually referring to the axil of a leaf. axis The main stem of a whole plant or inflorescence; also, the line along which this stem extends.
The stem can also be called the culm, halm, haulm, stalk, or thyrsus. The stem is normally divided into nodes and internodes: [2] The nodes are the points of attachment for leaves and can hold one or more leaves. There are sometimes axillary buds between the stem and leaf which can grow into branches (with leaves, conifer cones, or flowers). [2]
Aristate leaves end in a stiff point that may continue the primary leaf vein; this can resemble the stem end of a phylloclade/cladode. Epiphylly: flowers and fruit develop "on a leaf". A stem and a leaf are merged with one another. [7] Examples include Monophyllaea in family Gesneriaceae and Helwingia in Helwingiaceae.
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