|
|
|
|
|
|
|
|
|
|
|
Species Image Gallery (opens in a new window) |
|||||||||
| THE PONDWEED FAMILY | |||||||||
| The pondweeds grow in the water. Most species have submersed and floating leaves. The leaves are alternately arranged on the stem and have membranous stipules. The inflorescences are spike-like with the flowers in whorls. Each flower has four greenish tepals and four stamens. The fruit can be fleshy or dry. | |||||||||
| LARGELEAF PONDWEED | |||||||||
| LATIN NAME: Potamogeton amplifolius | |||||||||
| WHAT DOES IT LOOK LIKE? | |||||||||
| Largeleaf pondweed grows to 100 cm long from fibrous roots. The stem is round and rusty-spotted. This species has both submerged and floating leaves, though in some plants within a population, the floating leaves may be absent. The submersed leaves have 20 to 50 veins and are oval in shape. Their stipules are light brown and are not fibrous. The floating leaves are lance-shaped with a rounded or heart-shaped base and 27 to 50 veins. The flowers are in spikes that stick out of the water. The flowers are small and greenish. The fruit is a single-seeded and reddish-brown. | |||||||||
| WHERE DOES IT GROW? | |||||||||
| Largeleaf pondweed grows in shallow quiet water of protected lake bays, ponds and slow-moving streams. | |||||||||
| WHERE IS IT FOUND IN SASKATCHEWAN? | |||||||||
| This plant is found in central Saskatchewan in the Mid-Boreal Upland and Churchill River Upland ecoregions. | |||||||||
| WHY IS IT RARE? | |||||||||
| Largeleaf pondweed is endangered because of extreme rarity in Saskatchewan. No immediate threats are known but may occur in the future. | |||||||||
| HOW TO IDENTIFY LARGELEAF PONDWEED | |||||||||
| * Are the submerged leaves oval in shape? * Do the floating leaves have a rounded or heart-shaped base? * Are the flowers greenish and in spikes? * Did you find in the water in central Saskatchewan? | |||||||||
If you answered yes to all of these questions, you may have found largeleaf pondweed! |
|||||||||
