| Lanceleaf Water Plantain |
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| File size | 105749 |
| Original date | 6/19/10 1:23 AM |
| Resolution | 712 x 534 |
| Flash | Flash did not fire, auto |
| Focal length | 300.0mm |
| Exposure time | 1/500s |
| Aperture | 5.6 |
| Focus Distance | |
| Metering Mode | Multi-segment |
| Camera make | SONY |
| Camera model | DSLR-A100 |
| Sensor type |
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 aturalized |
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Photo: |
Botanical name: Alisma lanceolatum Family: Alismataceae (Water Plantain family)
Lanceleaf Water Plantain is an erect, hairless aquatic herb. Leaves are
broadly linear-lanceolate, pointed, 6-7.5 cm long, 1-1.4 cm broad,
somewhat glaucous, tapering into as long as or much longer stalks. Flowers
are borne in panicle of 3-6 ascending branches and stalks per verticil,
30-40 cm long. Flowers are white or light purplish-pink, about 1.2 cm
across. Flower-stalks are slender, 1.5-1.8 cm long. Bracts are triangular-
ovate, 5-10 mm long, long-pointed. Sepals are triangular-ovate, 3 mm long,
2 mm broad, with membranous margins, acute. Petals are membranous, oblong,
5-6 mm long, 2-2.5 mm broad, acute. Stamens with 2 mm long filaments,
anthers elliptic-oblong. Styles are longer than the ovaries, erect.
Achenes are obovate, about 2-2.5 mm long, pale brown, with 1 or 2 furrows
on back. Seeds are oblong, about 1.5 mm long, reddish brown. Lanceleaf
Water Plantain is native to Europe and West Asia.
Flowering: June-September.
Identification credit: Gurcharan Singh
| Photographed in Kashmir. |