a Catalog - Chicago Botanic Garden
... The spectacular, exfoliating bark of this multistemmed conifer exhibits more whitish and light grey patches than that of the straight species; hence the cultivar’s name. ‘Silver Ghost’ is a selection made from a specimen at the Dawes Arboretum in Newark, Ohio. It does best in well-drained, slightly ...
... The spectacular, exfoliating bark of this multistemmed conifer exhibits more whitish and light grey patches than that of the straight species; hence the cultivar’s name. ‘Silver Ghost’ is a selection made from a specimen at the Dawes Arboretum in Newark, Ohio. It does best in well-drained, slightly ...
Succulent of the Month - San Gabriel Cactus and Succulent Society
... opposite leaves. Other African members of the Crassulaceae have twice as many stamens as petals. ...
... opposite leaves. Other African members of the Crassulaceae have twice as many stamens as petals. ...
PDF - Darwin Online
... process of budding, as shown in fig. 1. The cells begin to bulge or swell in places and the buds so formed break off ...
... process of budding, as shown in fig. 1. The cells begin to bulge or swell in places and the buds so formed break off ...
Some Wayside Flowers of Central Korea
... resembles that of the common Daisy, though the foliage and growth are quite different, the leaves of the former being arrow-shaped, and the general growth of slight and delicate nature. Also the pink florets of the ray are longer than in those of the common daisy. April brings with its warmer days a ...
... resembles that of the common Daisy, though the foliage and growth are quite different, the leaves of the former being arrow-shaped, and the general growth of slight and delicate nature. Also the pink florets of the ray are longer than in those of the common daisy. April brings with its warmer days a ...
flower guide - Lancashire Wildlife Blogs
... Plants Survey. The list includes such familiar plants as traveller’s-joy from woodland edges, red dead-nettle and common poppy from arable field margins; heather from moorland, buck’s horn plantain and thrift from the coast; and yellow flag and marsh-marigold from wetlands. HOW TO USE THIS GUIDE The ...
... Plants Survey. The list includes such familiar plants as traveller’s-joy from woodland edges, red dead-nettle and common poppy from arable field margins; heather from moorland, buck’s horn plantain and thrift from the coast; and yellow flag and marsh-marigold from wetlands. HOW TO USE THIS GUIDE The ...
Native Plants for Desert Tortoises
... wildflowers like spiderling and spurge are considered weeds by many people. These are usually aggressive plants and can be your best choices for planting in the enclosure. Due to their fast growth and adaptability, they can take a lot of abuse from a hungry tortoise. The two primary seasons for annu ...
... wildflowers like spiderling and spurge are considered weeds by many people. These are usually aggressive plants and can be your best choices for planting in the enclosure. Due to their fast growth and adaptability, they can take a lot of abuse from a hungry tortoise. The two primary seasons for annu ...
Printable Palm Key
... Key to the most common species of palms (Arecaceae) at the La Selva Biological Station Palms at La Selva can be divided into five groups: I. Palms with palmate (fan-shaped) leaves and spines on the trunk. II. Palms with numerous well developed (0.5-3 m long) stilt roots. III. Palms, clonal or solita ...
... Key to the most common species of palms (Arecaceae) at the La Selva Biological Station Palms at La Selva can be divided into five groups: I. Palms with palmate (fan-shaped) leaves and spines on the trunk. II. Palms with numerous well developed (0.5-3 m long) stilt roots. III. Palms, clonal or solita ...
Whittlesea weed fact sheet * Gorse/Furze
... Young plants have green stems which are completely covered in leaves. However, mature plants have cracked, beige stems which can form trunks ranging from approximately pencil to ankle thick. Accurate identification is essential. If you are not sure whether you have this weed on your property, contac ...
... Young plants have green stems which are completely covered in leaves. However, mature plants have cracked, beige stems which can form trunks ranging from approximately pencil to ankle thick. Accurate identification is essential. If you are not sure whether you have this weed on your property, contac ...
Whittlesea weed fact sheet – Gorse/Furze
... Young plants have green stems which are completely covered in leaves. However, mature plants have cracked, beige stems which can form trunks ranging from approximately pencil to ankle thick. Accurate identification is essential. If you are not sure whether you have this weed on your property, contac ...
... Young plants have green stems which are completely covered in leaves. However, mature plants have cracked, beige stems which can form trunks ranging from approximately pencil to ankle thick. Accurate identification is essential. If you are not sure whether you have this weed on your property, contac ...
Bio-Botany - Textbooks Online
... The Biodiversity of the earth is enormous. Current estimates suggest that the earth may have anywhere from 10 to over 40 million species of organisms, but only about 1.7 million have actually been described including over 7,50,000 insects, about 2,50,000 flowering plants and 47,000 vertebrate animal ...
... The Biodiversity of the earth is enormous. Current estimates suggest that the earth may have anywhere from 10 to over 40 million species of organisms, but only about 1.7 million have actually been described including over 7,50,000 insects, about 2,50,000 flowering plants and 47,000 vertebrate animal ...
Plant Profiles - Oklahoma Proven
... Toad lilies are known for their very unique flowers. Flowers are pale lilac with dark purple spots that appear on upright arching stems late summer to early fall when many other plants are beginning to wind down. The flowers are small, so place toad lily in a spot where they can be appreciated up cl ...
... Toad lilies are known for their very unique flowers. Flowers are pale lilac with dark purple spots that appear on upright arching stems late summer to early fall when many other plants are beginning to wind down. The flowers are small, so place toad lily in a spot where they can be appreciated up cl ...
March Edition - National Plant Diagnostic Network
... increases runoff and soil erosion; reduces groundwater recharge in watersheds; shallow roots increase the danger of landslides on steep slopes. Potential loss of agricultural land. Miconia’s fast growth, early maturity, and massive seed production (one tree can produce 3 to 5 million seeds per year) ...
... increases runoff and soil erosion; reduces groundwater recharge in watersheds; shallow roots increase the danger of landslides on steep slopes. Potential loss of agricultural land. Miconia’s fast growth, early maturity, and massive seed production (one tree can produce 3 to 5 million seeds per year) ...
![Russian knapweed [Acroptilon repens]](http://s1.studyres.com/store/data/016103655_1-9956ea42b825c28d0da6efc993130f4c-300x300.png)
Russian knapweed [Acroptilon repens]
... GENERAL DESCRIPTION: Noxious bushy weeds with spiny or comb-like phyllaries and white, pink, or purple flowers. Plants exist as basal rosettes until erect, highly branched flowering stems with are produced late spring/summer. Centaurea species produce allelopathic effects and are highly competitive ...
... GENERAL DESCRIPTION: Noxious bushy weeds with spiny or comb-like phyllaries and white, pink, or purple flowers. Plants exist as basal rosettes until erect, highly branched flowering stems with are produced late spring/summer. Centaurea species produce allelopathic effects and are highly competitive ...
Abstract Nymphaea and Nuphar (Nymphaeaceae)
... Instead of fertile flowers this species usually produces sterile tuberiferous flowers that act as vegetative propagules. N. prolifera changes the meristem identity from reproductive to vegetative or vice versa repeatedly. Each branching flower first produces some perianth-like leaves, then it switch ...
... Instead of fertile flowers this species usually produces sterile tuberiferous flowers that act as vegetative propagules. N. prolifera changes the meristem identity from reproductive to vegetative or vice versa repeatedly. Each branching flower first produces some perianth-like leaves, then it switch ...
Native vegetation of estuaries and saline waterways in south
... saline conditions over summer and autumn. Seasonal rains in winter and spring provide the plant communities with fresh water. They also may receive water from groundwater seepage from the landward side. This freshwater flush is important for many salt-tolerant species as it enables the seeds to germ ...
... saline conditions over summer and autumn. Seasonal rains in winter and spring provide the plant communities with fresh water. They also may receive water from groundwater seepage from the landward side. This freshwater flush is important for many salt-tolerant species as it enables the seeds to germ ...
Water deficit and nitrogen nutrition of crops. A review - HAL
... Abstract – Among the environmental factors that can be modified by farmers, water and nitrogen are the main ones controlling plant growth. Irrigation and fertilizer application overcome this effect, if adequately used. Agriculture thus consumes about 85% of the total fresh water used worldwide. While ...
... Abstract – Among the environmental factors that can be modified by farmers, water and nitrogen are the main ones controlling plant growth. Irrigation and fertilizer application overcome this effect, if adequately used. Agriculture thus consumes about 85% of the total fresh water used worldwide. While ...
Minnesota Noxious Weeds - Minnesota Department of Transportation
... plant is often branched. Waxy stems and leaves have a bluish-gray color. Leaves: Alternate leaves 1-3 inch in length clasp stems, are wider and more heartshaped than similarly flowered butter-and-eggs (Linaria vulgaris). Flower: Erect, spike-like racemes of yellow flowers with orangey center marking ...
... plant is often branched. Waxy stems and leaves have a bluish-gray color. Leaves: Alternate leaves 1-3 inch in length clasp stems, are wider and more heartshaped than similarly flowered butter-and-eggs (Linaria vulgaris). Flower: Erect, spike-like racemes of yellow flowers with orangey center marking ...
tRNA-Related Sequences Trigger Systemic mRNA
... the DNDMC1 poly(A) transcript from stock to source leaves and into sporogenic tissues, where it is apparently translated, as it interferes with meiosis in male tissues. tRNAs Harbor a Signal for Systemic mRNA Movement To evaluate whether particular tRNA sequences related to the viral TLS mediate sys ...
... the DNDMC1 poly(A) transcript from stock to source leaves and into sporogenic tissues, where it is apparently translated, as it interferes with meiosis in male tissues. tRNAs Harbor a Signal for Systemic mRNA Movement To evaluate whether particular tRNA sequences related to the viral TLS mediate sys ...
SORGHUM PRODUCTION
... Temperature plays an important role in growth and development after germination. A temperature of 27 to 30 ºC is required for optimum growth and development. The temperature can, however be as low as 21 ºC, without a dramatic effect on growth and yield. Exceptionally high temperatures cause a decrea ...
... Temperature plays an important role in growth and development after germination. A temperature of 27 to 30 ºC is required for optimum growth and development. The temperature can, however be as low as 21 ºC, without a dramatic effect on growth and yield. Exceptionally high temperatures cause a decrea ...
Double Haploid Technique: In Soybean and Other Species
... “similar looking” nuclei. In some pollen the vegetative nucleus, while in others the two “similar looking” nuclei, undergo further repeated divisions to form multinucleate pollen. The generative nucleus remains quiescent or divides a couple of times and aborts. As a result of repeated division polle ...
... “similar looking” nuclei. In some pollen the vegetative nucleus, while in others the two “similar looking” nuclei, undergo further repeated divisions to form multinucleate pollen. The generative nucleus remains quiescent or divides a couple of times and aborts. As a result of repeated division polle ...
A Guide to Common Milkweeds of California
... Tropical milkweed is not native north of Mexico, but, due to its showy flowers and its ability to attract egg-laying monarchs, it has been widely planted in gardens. In Florida, the species has escaped from gardens and become established in natural areas. Scientists are concerned that this nonnative ...
... Tropical milkweed is not native north of Mexico, but, due to its showy flowers and its ability to attract egg-laying monarchs, it has been widely planted in gardens. In Florida, the species has escaped from gardens and become established in natural areas. Scientists are concerned that this nonnative ...
A study of greenhouse production techniques for evergreen Disas /
... 2001a). The genus is also represented in Madagascar and Reunion, and one species, D.pulchella, extends from tropical Africa into the Arabian Peninsula (Du Plessis & Duncan, 1989). The vast majority of species are deciduous, as the above-ground part dies off at the end of the growing season (Kurzweil ...
... 2001a). The genus is also represented in Madagascar and Reunion, and one species, D.pulchella, extends from tropical Africa into the Arabian Peninsula (Du Plessis & Duncan, 1989). The vast majority of species are deciduous, as the above-ground part dies off at the end of the growing season (Kurzweil ...
Chapter 17
... 17.7 A pine tree is a sporophyte with gametophytes in its cones A pine cone holds all of the tree’s reproductive stages: spores, eggs, sperm, zygotes, and embryos – Each scale of the cone contains sporangia that produce spores by meiosis – The spores produce gametophytes within the cone ...
... 17.7 A pine tree is a sporophyte with gametophytes in its cones A pine cone holds all of the tree’s reproductive stages: spores, eggs, sperm, zygotes, and embryos – Each scale of the cone contains sporangia that produce spores by meiosis – The spores produce gametophytes within the cone ...
Peanut Disease Photos - Extension Plant Pathology
... Heavy spotting before July 15 is usually due to chemical injury or irregular leaf spot. Fungicides are not effective against irregular leaf spot and irregular leaf spot does not affect yield. ...
... Heavy spotting before July 15 is usually due to chemical injury or irregular leaf spot. Fungicides are not effective against irregular leaf spot and irregular leaf spot does not affect yield. ...
Plant morphology
Plant morphology or phytomorphology is the study of the physical form and external structure of plants. This is usually considered distinct from plant anatomy, which is the study of the internal structure of plants, especially at the microscopic level. Plant morphology is useful in the visual identification of plants.