Merged : Pokok makan serangga...

Obersliutenant

adakah pokok camnih di pasaran Malaysia?



sesungutnya yg melekit akan membaham serangga menyentuhnya









tumbuhan eksotik ini juga dipelihara di Ireland sebagai hobi...

TomBeevore

kau ada tanam tu Obersliutenant?

Obersliutenant

tiadala tanya jer kalau sesiapa ader stok... heheh

niceghost2005

pssstttttttttt........teman dulu ada 3 Pokok Monkey Pot or Periok Kera. :tq:

razifah

: Sian tgk binatang tue.....

yelaa ttp kalau lalat daa banyaaak....? dan serranga buat kacau..

holmes

first time hom tngk plant ni....exotic ek...

plant tu bleh baham serangga...tu dah kira dia nak protect diri sendirik...

more info on Sundew...

The Sundews (Drosera) comprise one of the largest genera of carnivorous plants, with over 170 species. These members of the family Droseraceae lure, capture, and digest insects using stalked mucilaginous glands covering their leaf surface. The insects are used to supplement the poor mineral nutrition that sundews are unable to obtain from the soil they grow in. Various species, which vary greatly in size and form, can be found growing natively on every continent except Antarctica.

Both the botanical name (from the Greek ??ό??ς: "drosos" = "dew, dewdrops") as well as the English common name (sundew) refer to the glistening drops of mucilage at the tip of each tentacle that resemble drops of morning dew.

Plant characteristics
Sundews are perennial (or rarely annual) herbacious (nonwoody) plants, forming prostrate or upright rosettes between 1 centimeter (0.4 in.) and 1 meter (39 in.) in height, depending on the species. Climbing species form scrambling stems which can reach much longer lengths, up to 3 meters (10 ft.) in the case of D. erythrogyna.[1] Sundews have been shown to be able to achieve a lifespan of 50 years. The genus is so specialized for nutrient uptake through its carnivory that in at least the case of pygmy sundews it is missing the enzymes (nitrate reductase in particular) that plants usually use for the uptake of earth-bound nitrates.

Habit
The genus can be divided into several growth forms:

Temperate Sundews: These species form a tight cluster of unfurled leaves called a hibernaculum in a winter dormancy period (= Hemicryptophyte). All of the North American and European species belong to this group.

Subtropical Sundews: These species maintain vegetative growth year-round under uniform or nearly uniform climatic conditions.


A tuber of D. zonaria, a tuberous sundew, beginning its winter growth

Pygmy Sundews: A group of roughly 40 Australian species, they are distinguished by miniature growth, the formation of gemmae for asexual reproduction, and dense formation of hairs in the crown center. These hairs serve to protect the plants from Australia's intense summer sun. Pygmy sundews form the section Bryastrum.

Tuberous Sundews: More than 40 Australian species that form an underground corm in order to survive the extremely dry summers of their habitat, re-emerging in the fall. These so-called tuberous sundews can be further divided into two groups, those that form rosettes and those that form climbing or scrambling stems. Tuberous sundews comprise the subgenus Ergaleium.


D. derbyensis, from the petiolaris complex

Petiolaris Complex: A group of tropical Australian species which live in constantly warm but irregularly wet conditions. Several of the 14 species that comprise this group have developed special strategies to cope with the alternately drier conditions. Many species, for example, have petioles densely covered in trichomes, which maintain a sufficiently humid environment and serve as an increased condensation surface for morning dew. The petiolaris complex sundews comprise the section Lasiocephala.

Although they do not form a single strictly defined growthform, a number of species are often put together in a further group:

Queensland Sundews: A small group of three species (D. schizandra, D. prolifera, and D. adelae), all native to highly humid habitats in the dim understories of the Australian rainforest.

holmes

Leaves and carnivory


Leaf and tentacle movement on D. capensis

Sundews are characterised by the glandular tentacles, topped with sticky secretions, that cover their laminae. The trapping and digestion mechanism usually employs two types of glands: stalked glands that secrete sweet mucilage to attract and ensnare insects and enzymes to digest them, and sessile glands that absorb the resulting nutrient soup (the latter glands are missing in some species, such as D. erythrorhiza). Small prey, mainly consisting of insects, are attracted by the sweet secretions of the peduncular glands. Upon touching these, however, they become entrapped by sticky mucilage which prevents their progress or escape. Eventually, the prey either succumb to death through exhaustion or through asphyxiation as the mucilage envelops them and clogs their spiracles. Death usually occurs within one quarter of an hour. The plant meanwhile secretes esterase, peroxidase, phosphatase and protease enzymes. These enzymes both dissolve the insect and free the contained nutrients. The nutrient soup is then absorbed through the leaf surface and can then be used to help fuel plant growth.

All species of sundew are able to move their tentacles in response to contact with digestible prey. The tentacles are extremely sensitive and will bend toward the center of the leaf in order to bring the insect into contact with as many stalked glands as possible. According to Charles Darwin, the contact of the legs of a small gnat with a single tentacle is enough to induce this response. This response to touch is known as thigmotropism, and is quite rapid in some species. The outer tentacles (recently coined as "snap-tentacles") of D. burmannii and D. sessilifolia can bend inwards toward prey in a matter of seconds after contact, while D. glanduligera is known to bend these tentacles in toward prey in mere tenths of a second!] In addition to tentacle movement, some species are able to bend their laminas to various degrees in order to maximize contact with the prey. Of these, D. capensis exhibits what is probably the most dramatic movement, curling its leaf completely around prey in 12-72 hours. Some species, such as D. filiformis, are unable to bend their leaves in response to prey.

The leaf morphology of the species within the genus is extremely varied, ranging from the sessile ovate leaves of D. erythrorhiza to the bipinnately divided acicular leaves of D. binata.

Flowers and fruit


Flower of D. kenneallyi

The flowers of sundews, as with nearly all carnivorous plants, are held far above the leaves by a long stem in order to avoid trapping potential pollinators. The mostly unforked inflorescences are spikes, whose flowers open one at a time and usually only remain open for a short period. Flowers open in response to light intensity (often opening only in direct sunlight), and the entire inflorescence is also helitropic, moving in response to the sun's position in the sky.

The radially symmetrical (actinomorphous) flowers are always perfect and have five parts (the exceptions to this rule are the four-petaled D. pygmaea and the eight to twelve-petaled D. heterophylla). Most of the species have small flowers (<1.5 cm. or 0.6 in.). A few species, however, such as D. regia and D. cistiflora, have flowers 4 centimeters (1.5 in.) or more in diameter. In general, the flowers are white or pink. Australian species display a wider range of colors, including orange (D. callistos), red (D. adelae), yellow (D. zigzagia) or metallic violet colored (D. microphylla).

The ovary is superior and develops into a dehiscent seed capsule bearing numerous tiny seeds.

Roots
The root system of most Drosera is only weakly developed. It serves mainly to absorb water to and anchor the plant to the ground; the roots are relatively useless when it comes to nutrient uptake. A few South African species use their roots for water and food storage. Some Australian species form underground corms for this purpose, which also serve to allow the plants to survive dry summers. The roots of pygmy sundews are often extremely long in proportion to their size, with a 1 centimeter (0.4 in.) plant extending roots over 15 centimeters (6 in.) beneath the soil surface. Some pygmy sundews, such as D. lasiantha and D. scorpiodes, also form adventitious roots as supports.

Reproduction
Many species of sundews are self-fertile and flowers will often self-pollinate upon closing.[7] Often copious amounts of seeds are produced. The tiny black seeds germinate in response to moisture and light, while seeds of temperate species also require stratification in order to germinate.

Vegetative reproduction occurs naturally in some species that produce stolons. Pygmy sundews reproduce asexually using specialized scale-like leaves called gemmae. Tuberous sundews can produce offsets from their corms.

In culture, sundews can often be propagated through leaf, crown, or root cuttings, as well as through seeds.

holmes

Habitat


Round-leaf sundew (D. rotundifolia) growing in sphagnum moss along with sedges and Equisetum in Mt. Hood National Forest, Oregon

Sundews generally grow in seasonally moist or more rarely constantly wet habitats with acidic soils and high levels of sunlight. Common habitats include bogs, fens, swamps, marshes, the tepuis of Venezuela, the wallums of coastal Australia, the Fynbos of South Africa, and moist streambanks. Many species grow in association with sphagnum moss, which absorbs much of the soil's nutrient supply and also acidifies the soil, making nutrients less available to plant life. This allows sundews, which don't rely on soil-bound nutrients, to flourish where more dominating vegetation would usually outcompete them.

That being said, the genus is very variable in terms of habitat. Individual sundew species have adapted to a wide variety of environments, including atypical habitats such as rainforests, deserts (ex. D. burmannii and D. indica), and even highly shaded environments (Queensland Sundews). The temperate species, which form hibernacula in the winter, are an example of such adaptation to habitats; in general, sundews tend to prefer warm climates, and are only moderately frost-resistant.

Uses

As a medicinal plant
Several medicinally active compounds are found in sundews, including flavinoids (kaempferol, myricetin, quercetin and hyperoside),quinones (plumbagin, hydroplumbagin glucoside and rossoliside (7杕ethyl杊ydrojuglone

artificialive

Obersliutenant, kat singapore ada org jual ni.. xtaula dia bole post ke malaysia or tidak if kita nak beli.. yang jual tu individu, bukan kedai.. dia ada byk koleksi, so dia nak jual.. ni website dia:
little garden of horrors -  tgk kat bawah kategori for sale..

dan sbnrnya, ada byk lagi online nurseries yang jual pokok2 eksotik atau karnivor ni..
contohnya black jungle, rare exotics, flytraps.com, rare exotics seeds (jual biji benih je), triffid park dan banyak lagi..

Obersliutenant

haha terima kasih !!

artificialive

Originally posted by Obersliutenant at:01 PM
haha terima kasih !!

hehe sama2.. nanti dah ada sundews kat rumah, paste la gambar kat sini.. share ideas ;)

ilahairi

aahh lah... klu kat malaysia ni ada jual bunga2 macam ni elok gak nak gak iLa beli
bukan apa leh letak kat umah.. tolong2 tangkap lipas ke, semut ke, dan seangkatan dengannye lah
:bgrin:

artificialive

Originally posted by ilahairi at 1-12-2006 09:45 AM
aahh lah... klu kat malaysia ni ada jual bunga2 macam ni elok gak nak gak iLa beli
bukan apa leh letak kat umah.. tolong2 tangkap lipas ke, semut ke, dan seangkatan dengannye lah
:bgrin:

ehehe pokok ni kecik je.. silap2 lipas pun lagi besar dari sundews ni..

ilahairi

alah arartificialive.. sekurang2nye lipas tu kecut perut.. terperanjat tengok pokok tu.. heheheh.. lol

cantik lar pokok ni....!!

unik..

artificialive

Originally posted by 3sya at 4-12-2006 04:54 PM
cantik lar pokok ni....!!

unik..

ehehe sundews ni cantik n exotic..
ada banyak species sundews, ada yang bentuk mcm rumput, ada bentuk mcm piring..
tapi persamaan dia adalah ada mcm titisan air kat pokok tu, yang sbnrnya melekit.. serangga yang hinggap kat situ, tak bole terbang dah.. mcm lalat tu..

artificialive

Originally posted by holmes at 15-10-2006 13:27
Leaves and carnivory

Both the botanical name (from the Greek ??&#972;??&#962;: "drosos" = "dew,dewdrops") as well as the English common name (sundew) refer to theglistening drops of mucilage at the tip of each tentacle that resembledrops of morning dew.

Gambar tu adalah drosera burmanii holmes..

di bawah is my drosera..

Drosera Adelae




Serangga terbang yang menjadik mangsa..

Obersliutenant

woahh Art, ko ada sudah rupanyaaa!

MegatDin

cantiknya pokok tu..err..kalu bebudak2 sentuh tak bahaye ke? kut2 le gatal ke hapa ke?