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Chemicals Detected in Plants Used For Folk Medicine
Chemicals Detected in Plants Used For Folk Medicine

... various species efficacious in the treatment of different ailments even if they belong to the same family. Flavonoids Flavonoids are 15-carbon compounds which occur naturally and are widely distributed in the plant kingdom appearing in flower, fruits, stems, leaves, roots and plant derived beverages ...
Evolution of developmental mechanisms in plants
Evolution of developmental mechanisms in plants

... rhizoids provide conduits for water and nutrient transport, only the subterranean rhizomes enhance mechanical support. By contrast, true roots provide both transport capability and mechanical support. By definition they are multi-cellular, have a defined endodermis (with the exception of extant Lyco ...
Drosera capensis
Drosera capensis

... In early summer or late spring, D. capensis produces multiple, small, five-petaled pink flowers at the end of scapes which can be up to 30 cm tall. ...
Plants are made up of meristematic and permanent tissues and are
Plants are made up of meristematic and permanent tissues and are

... There are two types of plant tissues: meristematic tissue found in plant regions of continuous cell division and growth, and permanent (or non-meristematic) tissue consisting of cells that are no longer actively dividing. Meristems produce cells that differentiate into three main tissue types: derma ...
Kingdom Plantae
Kingdom Plantae

... waterproofs) replaces epidermis in woody plants ...
Fuchsia
Fuchsia

... joint between the base of the leaf petiole and its point of attachment on the stem) for insects. Avoid plants showing signs of insect or disease damage. ...
Ground Vegetation
Ground Vegetation

... Slender silvery-grey plant: up to 30cm. Narrow soft grey-green hairy leaves lie close to branching stem: only one or two stems per plant. Fine multiple leafless flower stalks from main stem. White papery petals surround yellow centre of flower, in loose clusters in spring. Seeds in early summer. Cul ...
How Plants Are Identified
How Plants Are Identified

... presence or absence of compounds, and localities). The person using the key normally does not go to great lengths to get the information requested by a couplet. 10. Consider both sexes in species that are dioecious (reproductive structures on different plants), because the specimen to be identified ...
Expanding the Plant Ontology to include non
Expanding the Plant Ontology to include non

... Plant Ontology Consortium Members and Curators*: Laurel D. Cooper*, Justin Elser, Justin Preece and Pankaj Jaiswal*: Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR Ramona L. Walls* and Dennis W. Stevenson: The New York Botanical Garden, Bronx, NY ...
Garlic - Portland Nursery
Garlic - Portland Nursery

... Full sun. Well drained, light, loamy soil rich in organic matter. Keep soil moist while the plant is growing new leaves. Let the soil dry as the leaves turn brown. Keep well weeded. Side dress in March with cotton seed meal or blood meal. Another option is a foliar-spray fertilizer, such as Alaska F ...
Plants are defined as multicelled, eukaryotic
Plants are defined as multicelled, eukaryotic

... following adaptations are strategies that enabled plants to move to land. ...
3. DarkReaction
3. DarkReaction

... – The majority of plants C4 – CO2 temporarily stored as 4-C organic acids resulting in more more efficient C exchange rate – Advantage in high light, high temperature, low CO2 – Many grasses and crops (e.g., corn, sorghum, millet, sugar cane) CAM – Stomata open during night – Advantage in arid clima ...
Botany Basics - Oregon State University
Botany Basics - Oregon State University

... lants are essential to life on earth. Either directly or indirectly, they are the primary food source for humans and other animals. Additionally, they provide fuel, replenish the earth’s oxygen supply, prevent soil erosion, slow down wind movement, cool the atmosphere, provide wildlife habitat, supp ...
PltFamsBio350
PltFamsBio350

... Leaves simple, opposite, usually entire and dotted with glands. Flowers usually bisexual and actinomorphic. Speals 2 – 10; petals 2 -12 (often 5), Stamen ususally numerous; sometimes coalescent basally in fasicles. Carpels 3 – 5; sometimes 7 (Same no. of ...
Traits shared by charophyceans and land plants The first land plants
Traits shared by charophyceans and land plants The first land plants

... Figure 29.21 Pteridophytes (seedless vascular plants): Lycopodium (a club "moss“, top left), Psilotum (a whisk fern, top right), Equisetum (a horsetail, bottom left), fern (bottom right). The latter three represent phylum Pterophyta, and Lycopodium represents phylum Lycophyta. Another genus in Lycop ...
Alternative Methods of Carbon Fixation
Alternative Methods of Carbon Fixation

... leaves from overheating and denaturing enzymes required for photosynthesis. When a molecule of water is lost from a stoma, it creates a transpiration pull that moves water, minerals and other substances from the roots to leaves where ...
Watercress in the Garden - DigitalCommons@USU
Watercress in the Garden - DigitalCommons@USU

... garden soil by incorporating 4 to 6 inches of well composted organic matter into the soil to a depth of 6 to 8 inches. Plants: Watercress is easily propagated by stem cuttings or from seeds. Seeds should be sown just below the soil surface, about 1/4 inch deep, roughly three weeks before the frost-f ...
Transport in Multicellular Plants
Transport in Multicellular Plants

... to leaf. At the other end of the plant, water is taken up by the root hair cells which occupy a small region just behind the growing tips of new roots. Root hairs take up mineral ions by active transport, an energy-requiring process, against the diffusion gradient. This leads to accumulation of ions ...
The Holly (Ilex aquifolium) On this homepage you normally find
The Holly (Ilex aquifolium) On this homepage you normally find

... aquifolium. This species, or rather the cultivars derived from it, is the one most commonly grown for Christmas holly, primarily because of its red berries. This is the only species that grows spontaneously in Europe up to 1,500 meters in altitude. Description The common holly grows as a shrub or tr ...
20.1 Origins of Plant Life
20.1 Origins of Plant Life

... • Angiosperms have seeds enclosed in some type of fruit. – Have flowers which are the reproductive structure – A fruit is a mature ovary of a flower. ...
Good and Bad Shade and Plants That Grow There
Good and Bad Shade and Plants That Grow There

... be found between two buildings or under a tree in an area dominated by the tree roots. Often the area will be either very dry or very wet. It is tough to get anything to grow in bad shade. But it might make a good area for a garden room with seating and art with lots of color and maybe a water featu ...
1030ExamIII
1030ExamIII

... 57. Advantages of sexual reproduction in all organisms include: A. Offspring are genetically identical to their parent B. Adaptive advantages in a changing environment C. Adaptive advantages in a constant environment D. Rapid, safe, and ultra-efficient reproduction E. Enjoyment for its participants ...
lecture5
lecture5

... This is the green, expanded portion of the leaf. It has a strong major vein known as the mid-rib which runs centrally through the leaf blade from its base to the apex. The midrib produces thinner lateral veins which in their turn give rise to still thinner veins or veinlets. The edge of the lamina i ...
Plant Structure and Function 2014using
Plant Structure and Function 2014using

... Anchors plant in soil Takes up water and minerals from soil ...
Lecture 8: Plant Evolution
Lecture 8: Plant Evolution

... 5. Asexual reproduction involves production of gemmae that disperse via raindrops or small animals a. Liverworts may also reproduce asexually by thallus branching D. Characteristics of Antherocerophyta 1. Members of phylum Antherocerophyta resemble liverworts but may not be closely related to them ...
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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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