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Section 1 Growing plants from seed
Section 1 Growing plants from seed

... A new plant can be grown from part of the original plant. Methods of reproducing plants without seeds are called vegetative propagation. Artificial propagation means that part of a plant for example a stem or leaf is cut off from its parent and treated so that it grows into a new plant. This method ...
Lilacs - Cornell Cooperative Extension
Lilacs - Cornell Cooperative Extension

... late winter/early spring (mid-February/mid-April), remove any crossing or dead branches. As branches grow taller and thicker, they will tend to produce fewer blooms. In order to avoid this, each year remove ¼ of the largest branches/stems allowing no more than 6 to 12 major branches to remain. As ba ...
- Wiley Online Library
- Wiley Online Library

...  We found that narrow-curly leaves resulted mainly from reduced lateral-axis outgrowth with fewer longitudinal veins and more, larger bulliform cells. Opened spikelets, possibly caused by marginal deformity in the lemma, gave rise to narrow-thin grains.  Map-based cloning revealed that NAL2 and NA ...
PDF - CLIMBERS - University of Michigan
PDF - CLIMBERS - University of Michigan

... Climbing Mechanism: Darwin noted that all members of the genus Lonicera climb with the apical stem, which moves dextrally (left to right) or, as Darwin referred to it, “with the sun” (10). Flower Description: The species is not dioecious as the name would suggest; its flowers are perfect. The flower ...
Chapter 2 - apel slice
Chapter 2 - apel slice

... How are plants grouped? Plants can be grouped by the kinds of parts they have. Flowering Plants An apple tree, a grass, and a cactus are flowering plants but each is in a different group. Plants in each group have different kinds of roots, stems, leaves, and flowers. Look at the examples below. Both ...
Assembling extinct plants from their isolated parts
Assembling extinct plants from their isolated parts

... those of Syzygium. Because at least one sample had fruits attached to a twig with Syzygium-like leaves, they were able to demonstrate that the reproductive structures were different from those expected for Eucalyptus (to which the species had first been assigned) and for Syzygium, and thus, the assi ...
Photosynthesis and Plant Responses
Photosynthesis and Plant Responses

... By the end of the eighth grade, students should know that: • One of the most general distinctions among organisms is between plants, which use sunlight to make their own food, and animals, which consume energy-rich foods. •Animals and plants have a great variety of body plans and structures that con ...
Rhynchostegium - Tela Botanica
Rhynchostegium - Tela Botanica

... 35a. Leaves falcate to nearly straight, stem leaves not with squarrose point; margin serrate or dentate or entire to finely denticulate in the upper part. 36. Plants reddish-black, occurring tightly attached to rocks. 36. Plants greenish, occurring on various substrates. 37. Plants minute, less than ...
Banana Shrub Scientific Name: Michelia figo Order: Magnoliales
Banana Shrub Scientific Name: Michelia figo Order: Magnoliales

... extremely fragrant. They are covered with greenish to silky brown hairs and diverge from a rusty brown peduncular stalk at approximately a 30 degree angle. In the vegetative stage, the flowers are not as plump, 1/8 to ¼ inch long, and are covered with dark brown, rusty pubescence. The flowers bloom ...
American Linden or Basswood
American Linden or Basswood

... Bud Size - Lateral buds are 1/8 to 2/5 inch long, somewhat flattened, lopsided, and smooth or slightly downy at tip. Leaf Type and Shape - Simple, broad-cordate or heart-shaped, oblique base. Leaf Margins - Coarsely-serrate with long-pointed teeth. Leaf Surface - Leathery with tufts of hair along mi ...
Growth and Plant Hormones - Plant Biology Growth All living
Growth and Plant Hormones - Plant Biology Growth All living

... Chemists have synthesized several inexpensive compounds similar in structure to IAA. Synthetic auxins, like naphthalene acetic acid, of NAA, are used extensively to promote root formation on stem and leaf cuttings. Gardeners often spray auxins on tomato plants to increase the number of fruits on eac ...
Responses of Wild Watermelon to Drought Stress: Accumulation of
Responses of Wild Watermelon to Drought Stress: Accumulation of

... to other in the energy cost for CO2 fixation but inferior in the water use efficiency (Edwards and Walker 1983). Inversely, although C4-plants prevail over C3-plants in the CO2-fixation efficiency, the energy cost of C4-plants in photosynthesis is worse than that of C3-plants (Furbank and Foyer 1988 ...
Garden plants poisonous to people
Garden plants poisonous to people

... abdominal pain, vomiting, or white, crocus-like flowers. Leaves absent diarrhoea and nervous when flowering. symptoms. Symptoms may not appear for 48 hrs. Dormant bulbs produce fleshy, strap-like Some plants all Nausea and vomiting to severe leaves in winter and flowers in spring. parts, others the ...
Pin Oak Tree Quercus palustris
Pin Oak Tree Quercus palustris

... ornamental trees in the United States. They are large-sized deciduous tree that grow to be 60-70 ft. tall, with a trunk diameter of up to 3 ft. They are relatively short-lived trees compared to other oaks, but they still have an average lifespan of 90-120 years. ...
Forest Basics - Michigan Forests Forever
Forest Basics - Michigan Forests Forever

... help us much in winter if the leaves have fallen (not all do!). Leaves on tall trees that are only way up in the air don’t help us much either. So, we should learn to look at other parts, such as twigs, buds, bud scars, bark, flowers, fruits, branching pattern, tree form, where the tree is growing, ...
Anemone (Anomone (a·nem·o·ne) from the Latin
Anemone (Anomone (a·nem·o·ne) from the Latin

... The flowers are large, bright yellow and about 3 cm to 5 cm wide. The flowers appear singly on the end of an unbranched, leafless, shiny, purplish, hollow stalk called a scape which is 5 to 15 cm tall. The scape seems to be smaller on lawns to avoid the lawn mower. On picking the flower, a bitter, m ...
Cyperus involucratus Rottb., UMBRELLA PLANT. Perennial herb
Cyperus involucratus Rottb., UMBRELLA PLANT. Perennial herb

... stems) to subcylindric, to 8 mm diameter, often with convex facets, green, tough, appearing smooth but ± scabrous. Leaves: alternate, sheath only; sheaths closed, forming a V-shaped opening ca. 1/4 length from tip, parallel-veined with veins slightly raised approaching tip and having evident cross v ...
press quality PDF - International Society for Fluoride Research
press quality PDF - International Society for Fluoride Research

... were found in the leaf tissue at the edges of the leaves and near the veins. In addition, injured and collapsed epidermis was observed in the polluted leaves. The transpiration steam of vascular plants causes huge concentration gradients in the leaves, so that the few millimeters near the tip or the ...
Liquidambar styraciflua - Lions Club of Wangaratta
Liquidambar styraciflua - Lions Club of Wangaratta

... initiate infection on both upper and lower leaf surfaces. In other regions of the U.S., Sweet Gum populations may not be as susceptible to local populations of this fungus. Environmental stress factors may also be involved, as reports have indicated that herbicide application and chlorosis caused by ...
to a printer friendly version of the following list.
to a printer friendly version of the following list.

... butterflies. The tiny compound leaves are similar to mesquite. A small number of three inch beans follow, and hang on past frost. As it is deciduous, the structure of the plant gives added interest to the winter landscape. The small thorns on new growth are not a problem. MEXICAN REDBUD – Cercis mex ...
Bitter Sneezeweed Life Cycle: Annual Summer annual with purplish
Bitter Sneezeweed Life Cycle: Annual Summer annual with purplish

... Giant ragweed reaches 12 to 15 feet on fertile, moist soils; 4 to 8 feet in less fertile, dry areas. Leaves are in pairs on coarse stems and have three to five large lobes. Common ragweed, 1 to 4 feet tall, has many lobed leaves. Lanceleaf grows 1 to 4 feet tall with rough leaves bearing two sharp ...
Haldina cordifolia is a deci
Haldina cordifolia is a deci

... mm, intrapetiolar, obovate, foliaceous, cauducous; petiole 4-10 cm long, stout, pubescent; lamina 10-20 x 10-20, orbicular or ovate or boadly ovate, base cordate, apex acuminate, margin entire. Flowers bisexual, yellow, in axillary globose heads, corolla 7-9 mm long, 5riged, densely finely hairy out ...
Truncation of LEAFY COTYLEDON1 Protein Is Required for Asexual
Truncation of LEAFY COTYLEDON1 Protein Is Required for Asexual

... in creating somatic propagules, because such mutations occurred in parallel at least twice within this clade (Garcês et al., 2007). Because the survival of leaf somatic embryos in these species is not affected by the loss of LEC1 function, due to the bypass of seed desiccation, we asked whether tran ...
The largest flowers in the world.
The largest flowers in the world.

... the weight needs to be distributed across the surface through mechanical means, such as a sheet of plywood. This allows the leaf to support up to 70 pounds ...
Kinnikinnick (Arctostaphylos uva-ursi)
Kinnikinnick (Arctostaphylos uva-ursi)

... This mat-forming shrub has woody reddish-brown branches, 6 to 8 inches tall. Its pinkish clusters of hanging bell-shaped flowers appear from March to June. The eye-catching red berries hang on and on, from July to February. While it grows best in sunny well-drained sites, Kinnikinnick can tolerate h ...
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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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