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Lupinus arcticus (lat. Lupinus arcticus) - paxlakimilər fəsiləsinin acıpaxla cinsinə aid bitki növü.
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Lupinus arcticus (lat. Lupinus arcticus) - paxlakimilər fəsiləsinin acıpaxla cinsinə aid bitki növü.
தாவரவியல் பெயர் :லூ பின்னல் ஆர்டிக்கஸ்(Lupinus arcticus)
குடும்பம்:லெகுமின்னோசேயீ (Leguminosae)
லூ பைன்
இச்செடி பனி கட்டி நிறைந்துள்ள (ஆர்க்டிக்) வடதுவருப்பகுதியில் வளர்கிற சிறியச்செடி ஆகும். துருவப்பகுதிகளில் உள்ள சிறு விலங்குகள் இதன் விதைகளை உண்ணுகிறது. இவ்விதையின் உறை மிகக் கடினமானது. உலகில் உள்ள விதைகளில் மிகவும் கெட்டியானதும், கடினமானதும் இவ்விதையே எனக் கருதப்படுகிறது. விதைகள் முளைப்பதற்கு ஓய்வு என்பது அவசியம். சில விதைகள் ஒரு சில நாட்களில் முளைக்கவேண்டும். சில பல மாதங்கள், பல வருடங்கள் கழித்து முளைக்கப்போட்டால் முளைக்கும். விதைகளில் முளைப்பு திறனைப் பொருத்த வரை அந்த லூபின்னஸ் விதைகள் மிகவும் ஆச்சரியப்படும் படி உள்ளது. கனடாவில் உறைபனியில் இருந்து எடுக்கப்பட்ட விதை முளைத்துள்ளது. இந்த விதையின் வயது 15,000 வருடம் ஆகிறது. 1967 ஆம் வருடம் வடதுருவப் பகுதியில் இருந்து எடுக்கப்பட்ட விறைத்து போன விதை 48 மணி நேரத்தில் முளைத்துள்ளது. இதன் வயது 10,000 வருடம் ஆகிறது. பனி உருகும்போது சரியான சூழ்நிலைக் கிடைத்தாலும் இவ்விதை உடனே முளைத்துவிடுகிறது. இச்சாதயில் 300 இனச்செடிகள் உள்ளன.
| 1 || சிறியதும் - பெரியதும் [1] || அறிவியல் வெளியீடு || ஜூன் 2001
Lupinus arcticus is a species of flowering plant in the legume family known by the common names Arctic lupine or subalpine lupine. It is native to northwestern North America, where it occurs from Oregon north to Alaska and east to Nunavut.[1] It is a common wildflower in British Columbia.[2]
This is a perennial herb growing from a taproot and producing an erect stem up to 50 centimeters tall. The dark green, hairy leaves are borne upon rough, hairy petioles up to 17 centimeters long. The leaves are palmately compound, made up of 3 to 9 leaflets each measuring up to 6 centimeters long. The inflorescence is a raceme up to 15 centimeters long bearing up to 30 flowers. The flowers are usually blue, sometimes purple, and occasionally white. The banners of the pealike flowers may be tinged with pink. The fruit is a hairy, greenish to blackish legume pod 2 or 3 centimeters long. It contains up to 10 white-speckled black seeds each about half a centimeter long.[3][4] The plant may hybridize with other lupine species when they grow together.[5]
This plant grows in several types of habitat, including fields of sedge and moss, alpine regions, and the hills of the Canadian Arctic Archipelago. It grows on tundra and in moist and wet substrates.[4]
This species has been the topic of some biological research. In 1967, it caused a stir when the seeds of this species were discovered in ancient lemming burrows dating back to the Pleistocene; the seeds were germinated and they produced plants, causing them to be declared the oldest viable seeds ever discovered.[6][7] In 2009, a follow-up article detailed how radiocarbon dating was used to determine that the seeds were, in fact, just a few years old at the time of their discovery, and had probably fallen into the burrows not long before.[8][7]
The plant contains a neurotoxin called sparteine, possibly as a deterrent to herbivores such as the snowshoe hare. The levels of sparteine in the leaves cycle, becoming higher at night, when herbivory is more likely to occur.[9][10] In addition to the hare, species of ground squirrel have been known to feed on the plant.[5]
Lupinus arcticus is a species of flowering plant in the legume family known by the common names Arctic lupine or subalpine lupine. It is native to northwestern North America, where it occurs from Oregon north to Alaska and east to Nunavut. It is a common wildflower in British Columbia.
This is a perennial herb growing from a taproot and producing an erect stem up to 50 centimeters tall. The dark green, hairy leaves are borne upon rough, hairy petioles up to 17 centimeters long. The leaves are palmately compound, made up of 3 to 9 leaflets each measuring up to 6 centimeters long. The inflorescence is a raceme up to 15 centimeters long bearing up to 30 flowers. The flowers are usually blue, sometimes purple, and occasionally white. The banners of the pealike flowers may be tinged with pink. The fruit is a hairy, greenish to blackish legume pod 2 or 3 centimeters long. It contains up to 10 white-speckled black seeds each about half a centimeter long. The plant may hybridize with other lupine species when they grow together.
This plant grows in several types of habitat, including fields of sedge and moss, alpine regions, and the hills of the Canadian Arctic Archipelago. It grows on tundra and in moist and wet substrates.
This species has been the topic of some biological research. In 1967, it caused a stir when the seeds of this species were discovered in ancient lemming burrows dating back to the Pleistocene; the seeds were germinated and they produced plants, causing them to be declared the oldest viable seeds ever discovered. In 2009, a follow-up article detailed how radiocarbon dating was used to determine that the seeds were, in fact, just a few years old at the time of their discovery, and had probably fallen into the burrows not long before.
The plant contains a neurotoxin called sparteine, possibly as a deterrent to herbivores such as the snowshoe hare. The levels of sparteine in the leaves cycle, becoming higher at night, when herbivory is more likely to occur. In addition to the hare, species of ground squirrel have been known to feed on the plant.
Lupin arctique
Lupinus arcticus, le lupin arctique, est une espèce de plantes dicotylédones de la famille des Fabaceae, sous-famille des Faboideae, originaire du Nord-Ouest de l'Amérique du Nord.
Ce sont des plantes herbacées vivaces poussant en touffes de plusieurs tiges et pouvant atteindre 50 cm de haut. Les fleurs bleues, rarement blanches, sont groupées en grappes pyramidales de 20 à 25 cm de long. Cette espèce est parfois cultivée comme plante ornementale pour sa floraison remarquable.
Selon Tropicos (11 septembre 2019)[1] (Attention liste brute contenant possiblement des synonymes) :
Lupin arctique
Lupinus arcticus, le lupin arctique, est une espèce de plantes dicotylédones de la famille des Fabaceae, sous-famille des Faboideae, originaire du Nord-Ouest de l'Amérique du Nord.
Ce sont des plantes herbacées vivaces poussant en touffes de plusieurs tiges et pouvant atteindre 50 cm de haut. Les fleurs bleues, rarement blanches, sont groupées en grappes pyramidales de 20 à 25 cm de long. Cette espèce est parfois cultivée comme plante ornementale pour sa floraison remarquable.
Lupinus arcticus là một loài thực vật có hoa trong họ Đậu. Loài này được S.Watson miêu tả khoa học đầu tiên.[1]
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Lupinus arcticus là một loài thực vật có hoa trong họ Đậu. Loài này được S.Watson miêu tả khoa học đầu tiên.
