“Jacob's ladder”的意思、由来-百科全书

Jacob's ladder

plant

also called Greek Valerian,

any of about 25 species of the genus Polemonium of the family Polemoniaceae, native to temperate areas in North and South America and Eurasia. Many are valued as garden flowers and wildflowers. They have loose, spikelike clusters of drooping blue, violet, or white, funnel-shaped, five-petaled flowers and alternate, pinnately (featherlike) compound leaves.

Polemonium caeruleum is native to European woodlands and mountains and widely grown as a garden flower. It can grow to 90 cm (3 feet) tall and has large blue or white flowers.

词条	Jacob's ladder
释义	Jacob's ladder plant also called Greek Valerian, any of about 25 species of the genus Polemonium of the family Polemoniaceae, native to temperate areas in North and South America and Eurasia. Many are valued as garden flowers and wildflowers. They have loose, spikelike clusters of drooping blue, violet, or white, funnel-shaped, five-petaled flowers and alternate, pinnately (featherlike) compound leaves. Polemonium caeruleum is native to European woodlands and mountains and widely grown as a garden flower. It can grow to 90 cm (3 feet) tall and has large blue or white flowers.
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