Pontederia hastata L., Sp. Pl.: 288 (1753). (Syn: Calcarunia hastata (L.) Raf. [Invalid]; Carigola hastata (L.) Raf.; Monochoria chinensis Gand.; Monochoria dilatata (Buch.-Ham.) Kunth; Monochoria hastata (L.) Solms; Monochoria hastifolia C.Presl; Monochoria sagittata Kunth; Pontederia sagittata Roxb. [Illegitimate]; Pontederia sagittifolia B.Heyne ex Wall. [Invalid]; Pontederia vaginalis Blanco [Illegitimate]) as per POWO; Trop. & Subtrop. Asia to N. Australia as per WCSP; Assam, Bangladesh, Borneo, Cambodia, China South-Central, China Southeast, East Himalaya, Fiji; Hainan, India, Jawa, Laos, Malaya, Myanmar, Nepal, New Guinea, Northern Territory, Philippines, Sri Lanka, Sulawesi, Sumatera, Thailand, Vietnam as per POWO; Keys as per Flora of China and FoC illustration; The leaves are 15-20 cm long, hastate; the flowers are on long pedicels. In M. vaginalis the leaves are 10 cm, ovate-cordate and flowers are sub-spicate. Besides flowers, perianth segments of withered flowers are seen twisted around the fruit in a cork screw manner. This is another character of M. hastata compared to M. vaginalis.
Arrow Leaf Pondweed, arrow-leaf monochoria, hastate-leaf pondweed, monochoria • Hindi: लौंकिया Launkia • Bengali: Nukha; Flora of Chakrata: Monochoria vaginalis from Assan barrage Dak Pathar: Monochoria vaginalis from Assan barrage Dak Pathar growing on the bank of Lake
the leaves are 15-20 cm long, hastate; the flowers are on long pedicels. In M. vaginalis the leaves are 10 cm, ovate-cordate and flowers are sub-spicate. This plant is hence M. hastata. Fully agree with your ID it is Monochoria hastata Besides flowers, perianth segments of withered flowers are seen twisted around the fruit in a cork screw manner. This is another character of M. hastata compared to M. vaginalis.
Herb for Id : 240912 RV 3: Plz Id this herb growing on the same patch I spoke about on my last mail.....
This should be Monochoria hastata...Pontederiaceae..
Yes ... Very nice photographs This really a great picture set. I am not sure what those helically collied part of the flower is!! It wil be kind if would enlighten me. As i see today's "SYMBIOSIS : 224" post, by Bimal Da, i remember i have recorded a similar plant just the day before yesterday. Is my plant a M. vaginalis or a M. hastata (L.) Solms. or some other? Species : Monochoria hastata (L.) Solms. ??? Bengali name : KOTOPANA (কোতপানা ) Habit & Habitat : wild herb in a paddyfield (flooded lowland), 2 feet to 3 feet tall Date : 10/8/12 @ 10.20 A.M. Place : Gobra (Hooghly) Links used :
The id is correct, ...
Eichhornia??: Requested to please identify this species. Picture taken in Asansol (W.B.) dated 31.07.11 time 09:22 AM I think it should be Pontederia hastata as per details and keys herein.
Location- Place, Altitude, GPS-.....On the way to Jaldapara Plant Habit- Tree/ Shrub/ Climber/ Herb- ...Herbaceous I think it is a moisture loving plant. Height/Length-....See pic Leaves Type/ Shape/ Size-....see pic Inflorescence Type/ Size-... see pic Flowers Size/ Colour/ Calyx/ Bracts-... see pic Help me to identify this flowering plant (upto species level, if possible). It is common in West Bengal, can be noticed through out the year, grows in marshy areas. Sometime confused with water hyacinth. But I think it is not typical water hyacinth. I THINK IT IS Monochoria hastaefolia Presl (FAMILY- PONTEDERIACEAE). monochoria is also called ovel leaf pondweed check it at http://www.flowersofindia.net/cgi-bin/search.pl This is called Arrowleaf Pondweed (Monochoria hastata to the botanist).
SYMBIOSIS : 224: Attaching an image of a Bumble Bee on the flower of Monochoria vaginalis.This plant is commonly known as Lesser Water Hyacinth. I think it should be Pontederia hastata as per details and keys herein. References: |
# Species- Seed plants (families) > M---Z (families & genera) > Po > Pontederiaceae > Pontederia >
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