Drosera glanduligera

Drosera glanduligera
Drosera glanduligera growing on the foothills of Mount Cameron, in northeastern Tasmania, Australia
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Droseraceae
Genus: Drosera
Subgenus: Coelophylla
(Planch.) Schlauer
Species: D. glanduligera
Binomial name
Drosera glanduligera
Lehm.
Synonyms

Drosera glanduligera, the pimpernel sundew,[1] is a rosetted annual species in the carnivorous plant genus Drosera that is endemic to Australia. It is 2.5–6 cm (1–2 in) tall and grows in most soil conditions. It produces orange flowers from August to November. It was originally described in 1844 by Johann Georg Christian Lehmann.[1] It is the sole species in the subgenus Coelophylla, which Jan Schlauer elevated from section rank in 1996; it was originally described by Jules Émile Planchon in 1848.[2]

Distribution

Drosera glanduligera is native to Tasmania and south western and south eastern Australia where it is often locally abundant.[3]

Biology

Drosera glanduligera is an annual plant that grows in the winter. Germination of the seeds requires cold temperatures. Young plants eat springtails while larger plants eat flies.[3]

The trapping mechanism of this species is unique in that it combines features of both flypaper and snap traps; it has been termed a catapult-flypaper trap.[4] Non-flying insects trigger this catapult when certain plant cells break.[5] Then this process cannot be repeated until the plant grows new tentacles.[5]

Drosera glanduligera capturing fruit flies using its catapulting tentacles
Slow motion video showing bending of a single snap-tentacle after manual stimulation with a nylon thread

See also

References

  1. 1 2 "Drosera glanduligera". FloraBase. Department of Environment and Conservation, Government of Western Australia.
  2. ↑ Schlauer, Jan (1996). "A dichotomous key to the genus Drosera L. (Droseraceae)" (PDF). Carnivorous Plant Newsletter 25: 67–88.
  3. 1 2 Brittnacher, J. Growing Drosera glanduligera. International Carnivorous Plant Society. Retrieved on 29 Jan 2015
  4. ↑ Poppinga, S.; Hartmeyer, S.R.H.; Seidel, R.; Masselter, T.; Hartmeyer, I.; Speck, T. (2012). "Catapulting tentacles in a sticky carnivorous plant". PLoS ONE 7 (9): e45735. doi:10.1371/journal.pone.0045735. PMC 3458893. PMID 23049849.
  5. 1 2 "Scientists discover carnivorous plant using sticky catapulting tentacles". University of Freiburg. Science Network: Western Australia. November 21, 2012. Retrieved November 29, 2012.
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