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Clintonia uniflora Observations
(queen's cup)
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Introduction to the NPN Native Species Observation Program
Queen's cup (also known as: bride's bonnet and a part of the lily family) is a low plant which grows in clusters formed by a large system of underground stems. It prefers moist woods, from the lowlands to sub-alpine. At mid-elevations, it may join with mosses to form a dense carpet. Shiny green leaves are paired (sometimes as a threesome) when they emerge in early spring, have long soft hairs on the underside, and grow to 25 cm in length. This plant produces a single pure-white, star-like flower with six sepals. It sits on a 10-20 cm hairy stalk, and appears after the leaves of the plant. The egg-shaped berry (6-12 mm round) is metallic blue in color.
Source: Plantwatch Canada
You should record when two well-defined phenological events occur for queen's cup:
- First bloom (FB) First select an approximately 1 by 1 meter plot for observation, and then record the date when first flowers are open in at least three places on the observed plants.
- Mid bloom (MB) Within the same 1 by 1 meter plot used for first bloom, this is the date when 50% of the flowers are open on the observed plants.
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Report by email if any plant appears in poor health.
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