This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all
Federal and State Noxious Weeds
old man's beard
"B" designated weed
old man's beard
This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of
Weeds of the U.S.
Linnaeus, Sp. Pl. 1: 544. 1753.
Traveler's joy, old man's beard
Stems climbing with tendril-like petioles and leaf-rachises, to 12 m. Leaf blade pinnately 5-foliolate; leaflets cordiform, 8 × (2-)3-5(-6) cm, margins entire to regularly crenate or dentate; surfaces abaxially minutely pubescent on veins, adaxially glabrous. Inflorescences axillary and terminal, (3-)5-22-flowered cymes. Flowers bisexual; pedicel 1-1.5 cm, slender; sepals wide-spreading, not recurved, white to cream, elliptic or oblanceolate to obovate, ca. 1 cm, length ca. 2 times width, abaxially and adaxially tomentose; stamens ca. 50; filaments glabrous; staminodes absent; pistils 20 or more. Achenes nearly terete, not conspicuously rimmed, densely pubescent; beak ca. 3.5 cm.
Flowering summer (Jun-Aug). Roadsides, waste ground, secondary growth; 0-100 m; introduced; B.C., Ont.; Maine, Oreg., Wash.; native to Europe, n Africa.
Clematis vitalba is naturalized in only a few sites in eastern North America and northwestern Oregon to the Puget Sound.
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