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| Crassula aquatica (L.) Schoenl. | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||
| Family: | Crassulaceae | ||||||||
| Genus: | Crassula | ||||||||
| Species Synonyms: | Tillaeastrum aquaticum (L.) Britt. Tillaea angustifolia Nutt. Tillaea aquatica L. Tillaea ascendens Eat. Hydrophila aquatica (L.) House Bulliarda aquatica (L.) DC. |
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| Common Names: | water pigmyweed common pigmyweed |
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| DISTRIBUTION | |||||||||
| Canada: | southern British Columbia, southwestern Saskatchewan, central Ontario, Quebec – Newfoundland, New Brunswick, Prince Edward Island, Nova Scotia | ||||||||
| Saskatchewan: | southwestern Saskatchewan | ||||||||
| Ecoregion: | Mixed Grassland | ||||||||
| HABITAT | |||||||||
| Saskatchewan: | pond margins | ||||||||
| Associated Species: | mudwort, popcorn flower, woollyheads | ||||||||
| RARITY STATUS | |||||||||
| Provincial
Status According to Harms (2003): |
Endangered |
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| Nature Conservancy Status: | G5 |
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| Saskatchewan
Species at Risk Status: |
None |
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| COSEWIC Status: | None |
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| No information is available regarding the endangered status of water pigmyweed, though it is likely that this species is less common and regionally restricted and therefore more vulnerable to habitat loss and human development. It also may be easily overlooked due to its small size. | |||||||||
| SPECIES DESCRIPTION | |||||||||
| Height: | 3 – 10 cm | ||||||||
| Roots: | fibrous | ||||||||
| Stem: | aquatic or semi-aquatic annual, thread-like | ||||||||
| Leaves: | opposite, fused at base, < 7 mm long, linear to oblong, somewhat fleshy | ||||||||
| Inflorescence: | flowers solitary, axillary, stalkless or short-stalked | ||||||||
| Flowers: | 3- or 4-merous; sepals green; petals greenish-white; stamens 3 or 4; ovary inferior | ||||||||
| Fruits: | cluster of pods opening along one side | ||||||||
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