Drosera sessilifolia

Drosera sessilifolia iyi-sundew encane yase-South American ene-rosette ejikelezayo, ama-leaf yellowish nama-pink-lilac flowers. Ezweni elimnyama livame ukuba yiminyaka ephilayo yesikhathi esifanayo sobusika.

Drosera sessilifolia forms a rosette of small, wedge-shaped to round carnivorous leaves. The leaves are usually yellowish and become redder with age. Plants are usually 1 to 2 cm across, and the largest wild rosettes recorded measured 4.5 cm.

The tiny flowers have pink-lilac or light lilac petals, and the sepals are often covered with short, stiff red hairs. The flower stalks are usually 5 to 8 cm tall and do not curve at the base, although one stalk 52 cm tall has been recorded.

It is very similar to its closest relative, Drosera burmannii, and the two make up section Thelocalyx. D. sessilifolia generally has rounder leaf blades and wider, shorter petioles, while D. burmannii has wedge-shaped, almost triangular leaves. Flower color does not separate them reliably, because some D. burmannii also have pink flowers. Both species have five styles that divide at the tip, unlike the other sundews of the Americas.

Isifunda Somdabu: i-Brazil, i-Venezuela ne-Guyana

Izindawo Zesimo Sezulu: I-Tropical, enesikhathi esicacile esimanzi nesiqhwaga

D. sessilifolia ikhula ezindaweni ezimanzi noma ezimanzi, lapho ifilimu elincane le-water lifaka i-sand ngesikhathi sesikhathi somvula; ezindaweni eziphezulu zalezi zindawo ezimanzi ikhula futhi ezindaweni ezimanzi ezimanzi noma ezimanzi. Irekhodiwe kusuka kuma-150 m ubude ePantanal floodplain kuze kube ngama-1,200 m eChapada dos Veadeiros. EBrazil ibizwa ngezindawo eziningi, kusuka eMinas Gerais neGoiás kuya enyakatho-mpumalanga, lapho ikhula khona eduze kwezintaba ze-freshwater ezivela phakathi kwe-sand dunes ngesikhathi sonyaka omanzi. Ihlala lapho izinsuku ezimanzi nezimanzi zihlukile kakhulu.

Usayizi Ovuthiwe: Rosette njalo 1-2 cm ngaphesheya (ufike ku-4.5 cm); insipho izihlahla njalo 5-8 cm

Izinga Lokukhula: Isheshayo

Uhlobo Lwesicupho: I-Flypaper Trap

Like other sundews, the leaves carry stalked glands whose sticky drops of mucilage attract and hold small insects. The glands then secrete enzymes that digest the prey, and the leaf absorbs the nutrients.

In the wild it grows, flowers, sets seed and dies within one rainy season; the seed sprouts with the next rains.
In seepages its seed germinates under a film of water and algae, so seedlings are often seen still submerged.
It and Drosera burmannii are the only two species in section Thelocalyx.
A hybrid with D. burmannii was made in cultivation in 1994 and called D. x thelocalyxiana.
Seed sold as D. sessilifolia before 2009 was sometimes D. burmannii or a hybrid.

I-French botanist Auguste de Saint-Hilaire wathola Drosera sessilifolia enyakatho Minas Gerais, Brazil, ezungeze iSão Francisco River, futhi wachaza ngo-1824. UGeorge Bentham wachaza Drosera dentata kusuka eGuyana ngo-1842, futhi Ludwig Diels wanciphisa ku-synonym of D. sessilifolia encwadini yakhe ka-1906 ye-Droseraceae. Ngo-1996 i-Brazilian botanist Fernando Rivadavia wachaza ukuthola kwayo ezweni elimnyama ngemuva nje kwezikhathi eziningi, ngoba izitshalo zazivele zifile emuva emlandweni omnyama.

1. Drosera sessilifolia, Wikipedia
2. Rivadavia, F. (1996). Drosera sessilifolia. Carnivorous Plant Newsletter 25(1): 26-29
3. Growing Drosera burmannii and D. sessilifolia, International Carnivorous Plant Society
4. Growing Subtropical Drosera, International Carnivorous Plant Society
5. Drosera, Wikipedia