Rock clematis (Clematis columbiana)
Description
Clematis columbiana is a Clematis species from the Atragene group ( Clematis sect. Atragene ) that occurs naturally in the mountains of the Rocky Mountains at an altitude of 800-2700 m. She grows there over rocks and bushes, often on steep mountain slopes. The species, of which Nathaniel Wyethcollected specimensin Montana in 1833, named Thomas Nuttall Atragene columbiana in 1834. John Torrey and Asa Gray renamed the plant in Clematis columbiana in 1838. The American name for the plant is "Columbia (n) virgin's bower". C. columbiana is a small-flowered, deciduous , climbing plant with lignified , slightly grooved stems. The plant climbs moderately and becomes 1-2 m high, but often also remains lower. It has two to threefold 3-tiered leaves. The stalked leaves are opposite. The leaves are lanceolate and the leaf edge is partially sawn or lobed. Sometimes the magazine is also clearly trilobal. C. columbiana has nodding, bell-shaped flowers and flowers on perennial stems. The flowers sit individually on long stalks. The flower has four pointed, lance-shaped kelkbaadjes (sepals), which is pretty thin, half-spread and from 4 to 6.3 cm long. The sepals are light blue to purple-colored (rarely white). The faster verbloeiende staminodia have approximately one-third of the length of a sepal and are inversely lancet-shaped. They are slightly hairy on the foot. The outer stamenodia have the same color as the sepals, the inner ones are white. The stamens in the center have green helmets with creamy yellow anthers at the top. The flowering of C. columbiana falls in the period from the end of April to the beginning of July.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Ranunculales
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Family: Ranunculaceae
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Genus: Clematis
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