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Plant Structure, Growth, and Development
Plant Structure, Growth, and Development

... describing a plant organ that grows in an unusual location, such as roots arising from stems or leaves. Each small root forms its own lateral roots. The result is a fibrous root system— a mat of generally thin roots spreading out below the soil surface (see Figure 30.13). Fibrous root systems usuall ...
Weeds of the Southern US
Weeds of the Southern US

... of more than 300 weeds for use in this publication. Priorities were assigned for use on the basis of most common occurrence and/or difficulty of control. We have attempted also to represent all the southern states with weeds peculiar to the widely varying environments. Nevertheless, there are at lea ...
Scutellaria slametensLs (Lamiaceae), a new
Scutellaria slametensLs (Lamiaceae), a new

... isotypes: KRB, NSW805395. Perennial herb, 0.4-1.5 m high. Stem erect, quadrangular, often with internodes laterally grooved, densely hairy (200-280 hairs/mm 2 ), hairs eglandular, minute, 0.02-1 mm long, straight or slightly curved distally, patent to slightly antrorse or slightly retrorse (particul ...
Wetland Plants and Plant Communities
Wetland Plants and Plant Communities

... PONDWEED FAMILY (Potamogetonaceae) C of C: Introduced, invasive (0) IND. STATUS: OBL FIELD CHARACTERISTICS: An aquatic, perennial herb with stems growing to 80 cm. long and 1-2 mm. wide. Leaves are all submersed, oblong, 3-9 cm. long and 5-10 mm. wide, rounded at the tip, stalkless, 3-5 veined with ...
Dry Bean Types and
Dry Bean Types and

... on the plant is described and followed to maturity. At the time of first bloom (reproductive stage indicated by R), secondary branching begins in the axis of lower nodes, which will produce secondary groups of blooms and pods. Following the main stem, which is readily discernible on determinate ...
Diagnosis of Common Diseases of Rice - Rice Knowledge Bank
Diagnosis of Common Diseases of Rice - Rice Knowledge Bank

... A disease is an abnormal condition that injures the plant or causes it to function improperly. Diseases are readily recognized by their symptoms - associated visible changes in the plant. The organisms that cause diseases are known as pathogens. Many species of bacteria, fungus, nematode, virus and ...
What`s flowering in November?
What`s flowering in November?

... A tufted shrublet with smooth, paddle-shaped leaves. It bears clusters of mauve, papery flowers from November to January. Very sought after as ...
Chapter 3: Insect pests of rice, maize and wheat
Chapter 3: Insect pests of rice, maize and wheat

... 3.4.3. Root Knot [Meloidogyne graminicola Golden & Birchfield] ..................... 25 Contributors .................................................................................................. 26 ...
Introduction to Botany - Moscow State University Botanical Server
Introduction to Botany - Moscow State University Botanical Server

... photosynthetic plants, feeding partly on other plants situation when one plant has more than one leaf type ...
Chapter 15 Plant Evolution and Classification Worksheets
Chapter 15 Plant Evolution and Classification Worksheets

... • Vascular plants evolved true roots made of vascular tissues. Compared with rhizoids, roots can absorb more water and minerals from the soil. They also anchor plants securely in the ground, so plants can grow larger without toppling over. • Vascular plants evolved stems made of vascular tissues and ...
Invasive Plant Guide - Alliance of Rouge Communities
Invasive Plant Guide - Alliance of Rouge Communities

... species present? In some cases, herbicides can be applied during the dormant season. In other cases, herbicides that only target broadleaved weeds, for example, might be most appropriate. ...
Early Detection Rapid Response
Early Detection Rapid Response

...  somewhat gangly and thin like an erect weed  narrow, curving, pointed leaves up to a few centimeters in length  flower has four petals which may be so deeply notched that they look like four pairs; generally light purple or pink, with darker veining  fruit is a capsule, 1 to 3 centimeters long ...
Preserving the Wild - Florida Native Plant Society
Preserving the Wild - Florida Native Plant Society

... stems into bundles. Avoid making bundles any thicker than the diameter of a quarter if the stems are still green, as that may cause them to mildew or rot before the center stems can thoroughly dry. Wrap the twisttie tightly twice around the bundle about two inches from the ends of stems, so that as ...
Chapter 31 Plants
Chapter 31 Plants

... 31.5 Three tissue systems make up the plant body  The organs of plants contain tissues, which are a group of cells that together perform a specialized function. For example – xylem tissue contains water-conducting cells that convey water and dissolved minerals upward from roots and – phloem tissue ...
What do mangroves mean to you?
What do mangroves mean to you?

... Mangroves are unusual trees which are suited to growing in salt water. They form forests along the shore in sheltered coastal areas. As the mangroves start to grow their roots cause the water that flows between the trees to move more slowly. When water flows slowly, any sediment begins to sink out, ...
BugBob`s Guide to Ribes of Orange and Western Riverside
BugBob`s Guide to Ribes of Orange and Western Riverside

... Sepals, petals, & stamens 4, red, all point downward toward the tip of the flower; stems are very spiny, 3 spines at each leaf node, often with numerous prickles between the nodes; fruit pink to red, densely covered with sticky-tipped red spines; in flower January-May ............................... ...
Propagation of Plants from Specialized Structures
Propagation of Plants from Specialized Structures

... flower in three or four years. • Coring: Coring removes the center portion of the basal plate and the main growing point of a bulb. Use a corer as shown in Fig. 3E or an apple corer for this purpose. Treat cored bulbs like scored bulbs. Cored bulbs produce still fewer bulblets than scored bulbs, bu ...
Category: 1 - Invasive.Org
Category: 1 - Invasive.Org

... cuspidatum Sieb & Zucc. Related Species: Giant knotweed Polygonum sachalinense F. Schmidt ex Maxim (Fallopia japonica) Family: Buckwheat family (Polygonaceae) Description: Forms extremely dense stands that can shade out all competing vegetation. Stems to ten feet tall, hollow, bamboo-like with thick ...
Paullinia pinnata (Sapindaceae) The plant Plant parts used
Paullinia pinnata (Sapindaceae) The plant Plant parts used

... In the plant family Sapindaceae the genus Paullinia is very important. It contains the species P. cupana of which Guarana, a caffeine rich (4-8 %) paste is prepared from the seeds. It is cultivated in Brazil, therefore. Paullinia pinnata, is growing naturally in South Africa and Madagascar, in Brazi ...
Studies on the Flora of Northern South America-IX
Studies on the Flora of Northern South America-IX

... in texturedue to age, and exhibitsmaturefruit and old flowersfrom which the petals have fallen. La Cruz 2869, withmaturefruit,and 2013, sterile,bothfromtheMazaruni region,differfromthe firsttwo in theirlarger,proportionately narrower,and more sharply acute leaves which are distinctly shining above. ...
Lecture 11
Lecture 11

... vernalization, plant can form vernalin,which can transfer from one part to others and promote flower. Vernalization only act the meristem of shoot apex. The effect can transfer form the cell to cell, not from organ to organ. ...
LETTUCE - Nichols Garden Nursery
LETTUCE - Nichols Garden Nursery

... long as weather at harvest time is cool for a continuous supply of crisp, sweet lettuce. Grow lettuce quickly for a crisp leaf. Keep the soil moderately moist during the entire growing season. For summer production, select varieties described as bolt resistant. ...
photosynthesis in higher plants
photosynthesis in higher plants

... In C3 pathway, Biosynthetic phase has only Calvin cycle. In C4 and CAM pathway, some additional reactions also occur before Calvin cycle, during biosynthetic phase. ...
Table of Contents
Table of Contents

... usually covered by standing water on a regular basis; plants that grow in the wetlands are adapted to those wet conditions and need a constant source of moisture for their survival ™ Hammocks- a place where the ground is higher and drier than the wetlands; hammocks are usually forested or wooded and ...
12chapter 6
12chapter 6

... including its outogeny. This broad view of epidermis is upheld by Eames and MacDaniels(1947) and Metcalflaand Chalk(1950). In present investigation, epidermal morphology stomata and ontogeny, of 30 Angiospermic, prominantly a~ailable taxa belonging to some 13 different families, are worked out. List ...
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Leaf



A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Foliage is a mass noun that refers to leaves collectively.Typically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis. Most leaves have distinctive upper (adaxial) and lower (abaxial) surfaces that differ in colour, hairiness, the number of stomata (pores that intake and output gases) and other features. In most plant species, leaves are broad and flat. Such species are referred to as broad-leaved plants. Many gymnosperm species have thin needle-like leaves that can be advantageous in cold climates frequented by snow and frost. Leaves can also have other shapes and forms such as the scales in certain species of conifers. Some leaves are not above ground (such as bulb scales). Succulent plants often have thick juicy leaves, but some leaves are without major photosynthetic function and may be dead at maturity, as in some cataphylls, and spines). Furthermore, several kinds of leaf-like structures found in vascular plants are not totally homologous with them. Examples include flattened plant stems (called phylloclades and cladodes), and phyllodes (flattened leaf stems), both of which differ from leaves in their structure and origin. Many structures of non-vascular plants, and even of some lichens, which are not plants at all (in the sense of being members of the kingdom Plantae), look and function much like leaves. The primary site of photosynthesis in most leaves (palisade mesophyll) almost always occurs on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of Eucalyptus palisade occurs on both sides and the leaves are said to be isobilateral.
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