Like other members of the genusSarracenia, the yellow pitcher plant traps insects using a rolled leaf, which in this species is a vibrant yellow in color, and up to over a meter (3 ft) in height[4] (although 50 cm, 20" is more typical). The uppermost part of the leaf is flared into a lid (the operculum), which prevents excess rain from entering the pitcher and diluting the digestive secretions within. The upper regions of the pitcher are covered in short, stiff, downwards-pointing hairs, which serve to guide insects alighting on the upper portions of the leaf towards the opening of the pitcher tube. The upper regions are also brightly patterned with flower-like anthocyanin markings, particularly in the varieties S. flava var. rugelii and S. flava var. ornata: these markings also serve to attract insect prey. The opening of the pitcher tube is retroflexed into a 'nectar roll' or peristome, whose surface is studded with nectar-secreting glands. The nectar contains not only sugars, but also the alkaloidconiine (a toxin also found in hemlock), which probably intoxicates the prey. Prey entering the tube find that their footing is made extremely uncertain by the smooth, waxy secretions found on the surfaces of the upper portion of the tube. Insects losing their footing on this surface plummet to the bottom of the tube, where a combination of digestive fluid, wetting agents and inward-pointing hairs prevent their escape. Some large insects (such as wasps) have been reported to escape from the pitchers on occasion, by chewing their way out through the wall of the tube.
Red Sarracenia flava
In spring, the plant produces large flowers with 5-fold symmetry. The yellow petals are long and strap-like, and dangle over the umbrella-like style of the flower, which is held upside down at the end of a 50 cm, 20" long scape. The stigma of the flower are found at the tips of the 'spokes' of this umbrella. Pollinating insects generally enter the flower from above, forcing their way into the cavity between the petals and umbrella, and depositing any pollen they are carrying on the stigmata as they enter. The pollinators generally exit the flower, having been dusted with the plant's own pollen, by lifting a petal. This one-way system helps to ensure cross pollination.
In late summer and autumn, the plant stops producing carnivorous leaves, and instead produces flat, non-carnivorous phyllodia. This is probably an adaptation to low light levels and insect scarcity during the winter months, and shows clearly the cost of carnivory.
The yellow pitcher plant is easy to cultivate, and is one of the most popular carnivorous plants in horticulture. The yellow pitcher plant readily hybridises with other members of the genus Sarracenia: the hybrids S. x catesbaei (S. flava × S. purpurea) and S. moorei (S. flava × S. leucophylla) are found in the wild, and are also popular amongst collectors.
Pitcher mouth with operculum
Flower
A "pitcherplant meadow" in the Florida panhandle, with mixed varieties of Sarracenia flava: var. rugelii, var. ornata, and var. rubricorpora
References
^Schnell, D.; Catling, P.; Folkerts, G.; Frost, C.; Gardner, R.; et al. (2000). "Sarracenia flava". IUCN Red List of Threatened Species. 2000: e.T39715A10259287. doi:10.2305/IUCN.UK.2000.RLTS.T39715A10259287.en. Retrieved 20 November 2021.
^USDA, NRCS (n.d.). "Sarracenia flava". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 6 November 2015.
McBride, James (February 1819), Thomson, Thomas (ed.), "Power of the Sarracenia Adunca to entrap Insects", Annals of Philosophy, vol. XIII, no. LXXIV, p. 149, retrieved 27 April 2015
Mody, NV; Henson, R; Hedin, PA; Kokpol, U; Miles, DH (1976). Isolation of insect paralyzing agent coniine from Sarracenia flava. Cellular and Molecular Life Sciences32(7): 829–830. doi:10.1007/BF02003710
N.C. State University reference
Schnell, D.; Catling, P.; Folkerts, G.; Frost, C.; Gardner, R.; et al. (2000). "Sarracenia flava". IUCN Red List of Threatened Species. 2000: e.T39715A10259287. doi:10.2305/IUCN.UK.2000.RLTS.T39715A10259287.en.
External links
About Sarracenia Flava
Botanical Society of America, Sarracenia - the Pitcher Plants
Wikimedia Commons has media related to Sarracenia flava.
January 29, 2023
sarracenia, flava, yellow, pitcherplant, carnivorous, plant, family, sarraceniaceae, like, sarraceniaceae, native, world, range, extends, from, southern, alabama, through, florida, georgia, coastal, plains, southern, virginia, north, carolina, south, carolina,. Sarracenia flava the yellow pitcherplant 2 is a carnivorous plant in the family Sarraceniaceae Like all the Sarraceniaceae it is native to the New World Its range extends from southern Alabama through Florida and Georgia to the coastal plains of southern Virginia North Carolina and South Carolina Populations also exist in the Piedmont Mendocino County California 3 and mountains of North Carolina Yellow pitcher plantConservation statusLeast Concern IUCN 2 3 1 Scientific classificationKingdom PlantaeClade TracheophytesClade AngiospermsClade EudicotsClade AsteridsOrder EricalesFamily SarraceniaceaeGenus SarraceniaSpecies S flavaBinomial nameSarracenia flavaL Sarracenia flava rangeLike other members of the genus Sarracenia the yellow pitcher plant traps insects using a rolled leaf which in this species is a vibrant yellow in color and up to over a meter 3 ft in height 4 although 50 cm 20 is more typical The uppermost part of the leaf is flared into a lid the operculum which prevents excess rain from entering the pitcher and diluting the digestive secretions within The upper regions of the pitcher are covered in short stiff downwards pointing hairs which serve to guide insects alighting on the upper portions of the leaf towards the opening of the pitcher tube The upper regions are also brightly patterned with flower like anthocyanin markings particularly in the varieties S flava var rugelii and S flava var ornata these markings also serve to attract insect prey The opening of the pitcher tube is retroflexed into a nectar roll or peristome whose surface is studded with nectar secreting glands The nectar contains not only sugars but also the alkaloid coniine a toxin also found in hemlock which probably intoxicates the prey Prey entering the tube find that their footing is made extremely uncertain by the smooth waxy secretions found on the surfaces of the upper portion of the tube Insects losing their footing on this surface plummet to the bottom of the tube where a combination of digestive fluid wetting agents and inward pointing hairs prevent their escape Some large insects such as wasps have been reported to escape from the pitchers on occasion by chewing their way out through the wall of the tube Red Sarracenia flava In spring the plant produces large flowers with 5 fold symmetry The yellow petals are long and strap like and dangle over the umbrella like style of the flower which is held upside down at the end of a 50 cm 20 long scape The stigma of the flower are found at the tips of the spokes of this umbrella Pollinating insects generally enter the flower from above forcing their way into the cavity between the petals and umbrella and depositing any pollen they are carrying on the stigmata as they enter The pollinators generally exit the flower having been dusted with the plant s own pollen by lifting a petal This one way system helps to ensure cross pollination In late summer and autumn the plant stops producing carnivorous leaves and instead produces flat non carnivorous phyllodia This is probably an adaptation to low light levels and insect scarcity during the winter months and shows clearly the cost of carnivory The yellow pitcher plant is easy to cultivate and is one of the most popular carnivorous plants in horticulture The yellow pitcher plant readily hybridises with other members of the genus Sarracenia the hybrids S x catesbaei S flava S purpurea and S moorei S flava S leucophylla are found in the wild and are also popular amongst collectors Pitcher mouth with operculum Flower A pitcherplant meadow in the Florida panhandle with mixed varieties of Sarracenia flava var rugelii var ornata and var rubricorporaReferences Edit Schnell D Catling P Folkerts G Frost C Gardner R et al 2000 Sarracenia flava IUCN Red List of Threatened Species 2000 e T39715A10259287 doi 10 2305 IUCN UK 2000 RLTS T39715A10259287 en Retrieved 20 November 2021 USDA NRCS n d Sarracenia flava The PLANTS Database plants usda gov Greensboro North Carolina National Plant Data Team Retrieved 6 November 2015 iNaturalist org Sarracenia flava Graham D L 1997 Reflections and suggestions from 1996 PDF Carnivorous Plant Newsletter 26 4 118 120 McBride James February 1819 Thomson Thomas ed Power of the Sarracenia Adunca to entrap Insects Annals of Philosophy vol XIII no LXXIV p 149 retrieved 27 April 2015 Mody NV Henson R Hedin PA Kokpol U Miles DH 1976 Isolation of insect paralyzing agent coniine from Sarracenia flava Cellular and Molecular Life Sciences 32 7 829 830 doi 10 1007 BF02003710 N C State University reference Schnell D Catling P Folkerts G Frost C Gardner R et al 2000 Sarracenia flava IUCN Red List of Threatened Species 2000 e T39715A10259287 doi 10 2305 IUCN UK 2000 RLTS T39715A10259287 en External links EditAbout Sarracenia Flava Botanical Society of America Sarracenia the Pitcher Plants Wikimedia Commons has media related to Sarracenia flava Retrieved from https en wikipedia org w index php title Sarracenia flava amp oldid 1134026124, wikipedia, wiki, book, books, library,
