• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Roots
Roots

... organization consisting of organs, tissues, and cells • Plants have organs composed of different tissues, which in turn are composed of different cell types • A tissue is a group of cells consisting of one or more cell types that together perform a specialized function • An organ consists of several ...
Botany - Life Sciences
Botany - Life Sciences

... the stems to scour pots and pans, and some people call these plants “scouring rushes.” Horse­tails are found in wet, often sandy or gravelly soils of damp woods, along the banks of fast-moving rivers and streams, and in standing waters of rivers, ponds, and lakes. Club mosses are small, evergreen, p ...
Explore ephemerals and other early bloomers beyond tulips and
Explore ephemerals and other early bloomers beyond tulips and

... but the leaves continue to enlarge and often remain attractive until midsummer. Pollinated by bees and flies, the plants develop elongated green pods that lengthen and ripen as the foliage develops. There is also a double form with large, showy flowers, which is equally prized by gardeners. Zones 3- ...
Spring 2016 - Herb Society of America
Spring 2016 - Herb Society of America

... caused me to step back and re-examine my efforts. In this book, the authors suggest that there are two ways to go about creating a native garden. The first, which is probably what most of us do, is to add native plants to an existing garden, using plants from many different parts o ...
Common Teasel - Learning Center of the American Southwest
Common Teasel - Learning Center of the American Southwest

... takes to bolt strongly depends how large the rosette grows. The stems are prickly and branch near the top. After flowering, the stems become woody and persist through the following winter. The root system consists of a thick taproot and fibrous secondary roots. Common teasel reproduces by seeds that ...
- UTas ePrints
- UTas ePrints

... rachis; first pinnules of pinna arising opposite, later pinnules alternate on the two sides; pinnules of one pinna "commonly" overlapping those of the next and adjacent pinnules of the same pinna; first pinnule consists of short stalk, forking after approximately 0.2 mm into an upward pointing ferti ...
Gymnosperms
Gymnosperms

... •ca. 700 spp. •once dominant worldwide, displaced by angios •shrubs or small trees, highly branched with well developed wood •leaves simple, often needle-like or awl-shaped -pines: in fascicles •non-motile sperm (pollen tube needed) •female (seed-bearing) cones in most •include both traditional coni ...
Grassland Plant Identification Guide
Grassland Plant Identification Guide

... Sepal – One of the outer whorl of floral leaves (usually green), that surround the petals of a flower. A calyx is the collective name for a whorl of sepals, and a calyx-tube is when the sepals are fused together. The sepals may only be fused halfway along the length and ending in projections, termed ...
non-vascular
non-vascular

... Where are most of the plants carbohydrates made? ...
The Plant Body
The Plant Body

... epidermal cells have root hairs. • Ground meristem produces the cortex, consisting of parenchyma cells and the ...
Ledum palustre L. subsp. decumbens (Ait.) Hult. (family Ericaceae)
Ledum palustre L. subsp. decumbens (Ait.) Hult. (family Ericaceae)

... Tundra tea is also used for purification in a spiritual sense (tarvaq in Yup’ik). Elders say that those who have lost a family member require purification so that they can smell of the earth and nature again before going out to hunt. People tie the stems with leaves in a bundle and hang them to dry. ...
The Plant Body - Castle High School
The Plant Body - Castle High School

... epidermal cells have root hairs. • Ground meristem produces the cortex, consisting of parenchyma cells and the ...
Fact Sheet 2008 - Dalrymple Farms
Fact Sheet 2008 - Dalrymple Farms

... the ground , so to speak. When managed as above, the grass re-growth and total production is good. For a continuous style of grazing, set the stocking rate to gradually graze the forage over many weeks. For well fertilized QNBCG on dry land, this could be from 800 to 1200 pounds of weight per acre. ...
Growth! Plant systems Plant systems
Growth! Plant systems Plant systems

... Figure 35.16 Organization of primary tissues in young stems. Note difference from root: vascular tissue is arranged in bundles, with ground tissue in center. Also note difference in arrangement of bundles between dicot and monocot. ...
tips to bio-botany teachers
tips to bio-botany teachers

... root . 2.Eg. Vascular cambium and cork cambium (phellogen). 3. It produces secondary permanent tissues, which result in the thickening of stem and root. 2. Functions of epidermal tissue system. 1. In the shoot checks excessive loss of water due to the presence of cuticle. 2. It protects the underlyi ...
Spring 2014 Trees
Spring 2014 Trees

... Crimson Spire™ Oak melds the best characteristics of its White and English Oak heritage to produce a fast-growing, hardy, columnar tree that’s a great fit for streetscapes and landscape settings. Fastigiate habit and adaptability are inherited from English Oak (Quercus robur), while its dark green, ...
Plant Parts - POLYTECH High School
Plant Parts - POLYTECH High School

... vines, trees, and herbs. All of these higher-level groupings are decidedly lopsided: the vast majority of the 270,000 plant species are flowering herbs. ...
Woolly alder aphid
Woolly alder aphid

... Host plants: Alder and silver maple Description: Both winged and wingless forms occur. The winged aphid can reach 10 mm in wingspan. Wingless aphids are approximately 2 mm long and gray in color, but are usually covered by a dense, white, waxy material. Life history: These aphids infest two hosts. E ...
Woody plants grow in diameter from sides secondary growth
Woody plants grow in diameter from sides secondary growth

... layers ...
Description of Plants in the Kitty Todd Arboretum
Description of Plants in the Kitty Todd Arboretum

... Very similar to its American cousin, but with slightly darker leaves. Look for a pair of mushroom-shaped glands with sunken tops on the leaf stem to be sure of this one. 30. Dogwood, pagoda (Cornus alternifolia) Other common names: Alternate leaved dogwood, Pagoda tree This, as its name suggests, is ...
Ch. 39 Plant Responses to Internal and External Signals
Ch. 39 Plant Responses to Internal and External Signals

... ­senescence = programmed death of certain cells or organs or the entire plant programmed cell death ­ apoptosis leaf abscission ­causes cells to produce enzymes that digest cellulose  in abscission layer (parenchyma cells) purpose ­ prevent dessication during periods where water is  scarce elements ...
Division Pterophyta: Ferns
Division Pterophyta: Ferns

... 3. Seeds are designed to travel in different ways.  List two types of fruits that are designed to fly through the air. ...
Diversity And Classification of Flowering Plants:
Diversity And Classification of Flowering Plants:

... The Polygonaceae are typically classified into two subfamilies: Polygonoideae, with ocrea present Eriogonoideae, with ocrea absent Members of the family have a worldwide distribution, especially in the northern temperate hemisphere. Economic importance includes edible plants, such as: ...
Wild flower spotter sheet Town species
Wild flower spotter sheet Town species

... red flowers found where soil has been disturbed, so often seen on waste ground and roadsides. ...
Phenological Observation Guide of the International Phenological
Phenological Observation Guide of the International Phenological

... colouring’ and the ‘leaf fall’ a certain day can hardly be fixed. But even for these difficult phases a certain day should be indicated, i.e. instead of stating ‘1st - 5th November’ one should indicate ‘2nd November’ as the date at which the phenomenon concerned was best developed. It is impossible ...
< 1 ... 122 123 124 125 126 127 128 129 130 ... 316 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report