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Species Image Gallery (opens in a new window) |
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| THE BUTTERCUP FAMILY | ||
| The buttercup family is common in temperate and boreal regions of the Northern Hemisphere. These plants are usually herbs, but may also be vines or shrubs. The stems do not have spines or prickles. The stem leaves are alternate or occasionally opposite or whorled. The leaves can be simple or compound but are at least lobed in the majority of species. The margins may be entire or toothed. The flowers are in several different types of clusters, from solitary flowers to branched, unbranched or umbrella-like groups. The flowers are commonly lacking petals and have coloured sepals. One to several whorls of bracts may be present below the flowers. The ovary consists of several separate carpels which mature to form an aggregate fruit or berry. The aggregates may be of pods or of single-seeded fruits that resemble seeds. | ||
| YELLOW THIMBLEWEED | ||
| LATIN NAME: Anemone richardsonii | ||
| WHAT DOES IT LOOK LIKE? | ||
| Yellow thimbleweed grows as tall as 20 cm from yellow or light brown rhizomes. There is one basal leaf, which may be separate from the flowering stem but joined by the rhizome. The leaves are deeply three to five-lobed and are kidney-shaped to nearly round in outline. The three stem leaves (otherwise known as the bracts) are similar to the basal leaf, except that they do not have a leaf stalk. The sepals are yellow and the petals are absent. This species has 25 to 55 stamens. The fruits are in loose, nearly round clusters. The fruits are hairless. | ||
| WHERE DOES IT GROW? | ||
| Yellow thimbleweed grows in moist woods and muskegs. | ||
| WHERE IS IT FOUND IN SASKATCHEWAN? | ||
| This plant is found in northwestern Saskatchewan in the Mid-Boreal Upland and Tazin Lake Upland ecoregions. | ||
| WHY IS IT RARE? | ||
| Twoleaf anemone is threatened because of rarity in Saskatchewan. It is regionally restricted to the eastern part of the province. Some local populations are small and some larger. Possible threats have been identified for this species. | ||
| HOW TO IDENTIFY YELLOW THIMBLEWEED | ||
| * Are there three, stalked leaves on the stem? * Are the sepals white and the petals absent? * Are the fruits slightly hairy (but not woolly)? * Did you find it in east-central Saskatchewan? |
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| If you answered yes to all of these questions, you may have found yellow thimbleweed! | ||
