Top 10 Families - Field Studies Council
... About 60-70% of flowering plants in Britain are in about 15 families. (there are over 140 families in the British flora 600+ worldwide!!) So learning families can be short cut to using any key ...
... About 60-70% of flowering plants in Britain are in about 15 families. (there are over 140 families in the British flora 600+ worldwide!!) So learning families can be short cut to using any key ...
Weed Descriptions - Colorado State University Extension
... diameter and 0.5 to 0.66 inch long; flowers usually are white but may be purplish; involucre bracts are divided like teeth on a comb and tipped with a slender spine that makes them sharp to the touch; sometimes the bracts are dark-tipped or spotted like spotted knapweed; the long terminal spine diff ...
... diameter and 0.5 to 0.66 inch long; flowers usually are white but may be purplish; involucre bracts are divided like teeth on a comb and tipped with a slender spine that makes them sharp to the touch; sometimes the bracts are dark-tipped or spotted like spotted knapweed; the long terminal spine diff ...
THE FLORA SECTION 1: LYCOPODIOPHYTA (CLUBMOSSES) L1
... to medium elevations] ..................................................... H. porophila 2 Leaves ascending to spreading, 2-7.5 mm long, 0.6-0.8 (-1.0) mm wide, not toothed (though sometimes with minute, single cell bumps); stomates relatively many on the upper leaf surface (30-90 on each side of mi ...
... to medium elevations] ..................................................... H. porophila 2 Leaves ascending to spreading, 2-7.5 mm long, 0.6-0.8 (-1.0) mm wide, not toothed (though sometimes with minute, single cell bumps); stomates relatively many on the upper leaf surface (30-90 on each side of mi ...
Why Is a Flower Five-Petaled? (PDF Available)
... primordium theory about a flower was originally advocated by Goethe in1970. this theory is correct on the whole, although it also contains an error in the sense that a leaf bud and a flower bud are different and that all the leaves ...
... primordium theory about a flower was originally advocated by Goethe in1970. this theory is correct on the whole, although it also contains an error in the sense that a leaf bud and a flower bud are different and that all the leaves ...
Lab 4: Non Tracehophytes and Seedless Tracheophytes
... Distinguish between roots, rhizoids, and rhizomes ...
... Distinguish between roots, rhizoids, and rhizomes ...
Symptoms of plant disease
... – Spots: A will defined or self-limiting grey, tan or brwon necrotic lesion on a leaf – Shot holes: When a necrotic tissue with in a leafspot cracks and fall off, leaving small holes in their place. – Blotch: A necrotic area covered with brown fungus mycelium on leaves, shoots, and stems. – Streaks ...
... – Spots: A will defined or self-limiting grey, tan or brwon necrotic lesion on a leaf – Shot holes: When a necrotic tissue with in a leafspot cracks and fall off, leaving small holes in their place. – Blotch: A necrotic area covered with brown fungus mycelium on leaves, shoots, and stems. – Streaks ...
Yellow Toadflax
... ends of stems and have a long spur extending from the base that is usually as long as the flower itself – in all, 2 to 3.5 cm long. The snapdragon-like flowers can have orange colouring on the throat. They flower at different times depending on site conditions. In high elevations they could flower a ...
... ends of stems and have a long spur extending from the base that is usually as long as the flower itself – in all, 2 to 3.5 cm long. The snapdragon-like flowers can have orange colouring on the throat. They flower at different times depending on site conditions. In high elevations they could flower a ...
Plant Propagation - Havelock Agricultural Education
... • Dust with rooting hormone, place sphagnum moss in plastic and wrap around the incision forcing roots to grow on the stem of the plant. • Once roots form, remove below the new roots for a new plant. ...
... • Dust with rooting hormone, place sphagnum moss in plastic and wrap around the incision forcing roots to grow on the stem of the plant. • Once roots form, remove below the new roots for a new plant. ...
Pea Leaf Weevil
... based on the history of weevil damage in previous years, since planting occurs before pest activity can be monitored. Foliar sprays can be applied before the 6th node growth stage (Figure 3). The economic threshold for spraying is reached when ¼ to ¹⁄3 of the plants have feeding notches on the clam ...
... based on the history of weevil damage in previous years, since planting occurs before pest activity can be monitored. Foliar sprays can be applied before the 6th node growth stage (Figure 3). The economic threshold for spraying is reached when ¼ to ¹⁄3 of the plants have feeding notches on the clam ...
Bedding Plant Catalogue
... edible lavender flowers appear – also attracting bees. If more greens are wanted, the bunch can be cut down and more tasty leaves respond. Easy potted herb for windows. Likes richer soil. Repels insects. Comfrey (Symphytum officinale) grows vigorously, slowly expanding the space it takes up and is a ...
... edible lavender flowers appear – also attracting bees. If more greens are wanted, the bunch can be cut down and more tasty leaves respond. Easy potted herb for windows. Likes richer soil. Repels insects. Comfrey (Symphytum officinale) grows vigorously, slowly expanding the space it takes up and is a ...
Cirsium arvense
... with small purple flowers and prickly leaves. Impacts a wide range of habitats including cropland and riparian areas. Creeping rhizomes can colonize an area 3 - 6 feet in diameter in just a few years. Steve Dewey, Utah State University; Theodore Webster, USDA Ag Research Service, Bugwood.org ...
... with small purple flowers and prickly leaves. Impacts a wide range of habitats including cropland and riparian areas. Creeping rhizomes can colonize an area 3 - 6 feet in diameter in just a few years. Steve Dewey, Utah State University; Theodore Webster, USDA Ag Research Service, Bugwood.org ...
Growing Cole Crops
... When these crops are grown in the fall, they are often direct-seeded into the warm soil from July through early September. Cabbage and cauliflower may be seeded slightly earlier. Don’t seed cauliflower after August. The plants also may be seeded in a lightly fertilized nursery bed area or in pots an ...
... When these crops are grown in the fall, they are often direct-seeded into the warm soil from July through early September. Cabbage and cauliflower may be seeded slightly earlier. Don’t seed cauliflower after August. The plants also may be seeded in a lightly fertilized nursery bed area or in pots an ...
Gymnosperms
... There are three genera and about 70 living species of Gnetophyta. They are the only gymnosperms with vessels (a particularly efficient conducting cell type) in their xylem—a common feature in angiosperms. The members of the three genera differ greatly from one another in form. One of the most bizarr ...
... There are three genera and about 70 living species of Gnetophyta. They are the only gymnosperms with vessels (a particularly efficient conducting cell type) in their xylem—a common feature in angiosperms. The members of the three genera differ greatly from one another in form. One of the most bizarr ...
Diagnosing Plant Problems
... Other Biotic Pests • Other organisms: Slugs and snails cause feeding damage or skeletonizing of soft leaf tissue. • Spider mites cause a stippling of leaf tissue, which ultimately turns bronze to brown, and eriophyid mites distort new growth. ...
... Other Biotic Pests • Other organisms: Slugs and snails cause feeding damage or skeletonizing of soft leaf tissue. • Spider mites cause a stippling of leaf tissue, which ultimately turns bronze to brown, and eriophyid mites distort new growth. ...
File - Elisa Dawson
... Did you know? Most morning glory flowers unravel into full bloom each morning and close up at night. ...
... Did you know? Most morning glory flowers unravel into full bloom each morning and close up at night. ...
Coral Honeysuckle, Lonicera sempervirens
... later-developing leaves are oblong to elliptic or obovate, 3-8 cm long, with acute to rounded apices, cuneate to rounded bases, and entire margins, usually glabrous on both surfaces but sometimes minutely hairy below, green above, and glaucous-white below; petiole length varies with position on the ...
... later-developing leaves are oblong to elliptic or obovate, 3-8 cm long, with acute to rounded apices, cuneate to rounded bases, and entire margins, usually glabrous on both surfaces but sometimes minutely hairy below, green above, and glaucous-white below; petiole length varies with position on the ...
“PEARL IN THE CROWN” SIR SEEWOOSAGUR
... and perfume industry as well as in dentistry. The main producers of this raw material include Zanzibar and Madagascar. From one tree, 3-4 kg of cloves are obtained. It is propagated by seeds. It fructifies at the age of 8-10 years. Myristica, nutmeg tree – Myristica fragrans (Houtt); Myristicaceae f ...
... and perfume industry as well as in dentistry. The main producers of this raw material include Zanzibar and Madagascar. From one tree, 3-4 kg of cloves are obtained. It is propagated by seeds. It fructifies at the age of 8-10 years. Myristica, nutmeg tree – Myristica fragrans (Houtt); Myristicaceae f ...
Document
... There are many cultivated forms of English Ivy and the wild form has two leaf types: Juvenile leaves, typically trailing, and adult leaves, typically flowering and hanging from trees. It can be problematic in all Mid-South states and still sold in many forms within the nursery trade. However, most c ...
... There are many cultivated forms of English Ivy and the wild form has two leaf types: Juvenile leaves, typically trailing, and adult leaves, typically flowering and hanging from trees. It can be problematic in all Mid-South states and still sold in many forms within the nursery trade. However, most c ...
3.02 Plant parts
... Leaves – Internal Parts • Chloroplasts – small green particles that contain chlorophyll, gives leaves their green color and are necessary for photosynthesis. ...
... Leaves – Internal Parts • Chloroplasts – small green particles that contain chlorophyll, gives leaves their green color and are necessary for photosynthesis. ...
Exam III Review
... 34. Name the male and female gametophytes. 35. Why do the bryophytes require water for fertilization? 36. Name two differences between bryophytes and ferns. 37. Name the two types of vascular tissue and their functions. 38. Name the two other examples of vascular seedless plants. 39. Which generatio ...
... 34. Name the male and female gametophytes. 35. Why do the bryophytes require water for fertilization? 36. Name two differences between bryophytes and ferns. 37. Name the two types of vascular tissue and their functions. 38. Name the two other examples of vascular seedless plants. 39. Which generatio ...
Seed Plants - MUGAN`S BIOLOGY PAGE
... a dicot plant if possible! PROCEDURE: MAKE ALL OF YOUR SKETCHES ON THE BACK OF THIS PAPER 1. Examine the leaves of the live specimens! Observe the differences in the pattern of veins on the leaves! 2. Sketch each leaf, including its vein pattern (TWO SKETCHES – ONE MONOCOT, ONE DICOT) 3. Count the n ...
... a dicot plant if possible! PROCEDURE: MAKE ALL OF YOUR SKETCHES ON THE BACK OF THIS PAPER 1. Examine the leaves of the live specimens! Observe the differences in the pattern of veins on the leaves! 2. Sketch each leaf, including its vein pattern (TWO SKETCHES – ONE MONOCOT, ONE DICOT) 3. Count the n ...
Rhus michauxii - Wildlife Resources Division
... (4 - 9 cm) long, oval to oblong, sharply toothed, mostly opposite; with very short or no stalks except the terminal leaflet which has a winged stalk 2 inches (5 cm) long. Female and male flowers are on separate plants. Flowers in a dense, tightly branched cluster at the top of the stem; flowers wit ...
... (4 - 9 cm) long, oval to oblong, sharply toothed, mostly opposite; with very short or no stalks except the terminal leaflet which has a winged stalk 2 inches (5 cm) long. Female and male flowers are on separate plants. Flowers in a dense, tightly branched cluster at the top of the stem; flowers wit ...
ornamental pepper
... conical multicolored fruits that are typically 1⁄2 inch to 3 inches long, depending on variety. Leaves are dark green, and stems are thin, rigid and brittle. Plants are typically compact, but they can reach 16 or so inches in height. COLORS Fruit hues include red, orange, yellow, ...
... conical multicolored fruits that are typically 1⁄2 inch to 3 inches long, depending on variety. Leaves are dark green, and stems are thin, rigid and brittle. Plants are typically compact, but they can reach 16 or so inches in height. COLORS Fruit hues include red, orange, yellow, ...
are an example of a nonvascular plant. Flowers an
... are always changing. They change because of weather, season progression, introduction of new species, human intervention, or any number of reasons. When this happens, organisms must respond in order to survive and be able to reproduce. Plants are no different. They need to respond to environmental s ...
... are always changing. They change because of weather, season progression, introduction of new species, human intervention, or any number of reasons. When this happens, organisms must respond in order to survive and be able to reproduce. Plants are no different. They need to respond to environmental s ...
IOSR Journal of Applied Chemistry (IOSR-JAC)
... „Life leaf‟, „Air plant‟ or Miracle leaf in English. The leaf is native to Africa but is now grown widely in tropical and sub-tropical areas. All parts of the plant can be used as a drug. A drug is simply defined as any chemical compound which exerts various physiological effects of therapeutic valu ...
... „Life leaf‟, „Air plant‟ or Miracle leaf in English. The leaf is native to Africa but is now grown widely in tropical and sub-tropical areas. All parts of the plant can be used as a drug. A drug is simply defined as any chemical compound which exerts various physiological effects of therapeutic valu ...
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.