Sempervivum arachnoideum

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Welwitschia mirabilis or Amborella trichopoda

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Giant Redwood, Tollkirscheor 芙蕖

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endangered perennial medicinal 2024 1977

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4672364-4 or Q36484

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Home Plants magnoliophyta magnoliopsida saxifragales crassulaceae sempervivum Sempervivum arachnoideum

1753

cobweb houseleek

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Climate | Habitat | History | Research

Summary

Sempervivum arachnoideum, the cobweb house-leek, is a species of flowering plant in the family Crassulaceae, native to European mountains, in the Alps, Apennines and Carpathians. Growing to 8 cm (3 in) tall by 30 cm (12 in) wide, it is a rosette-forming succulent perennial, valued in cultivation for its ability to colonise hot, dry areas via offsets. The specific epithet arachnoideum refers to its furry central rosettes (long ciliate leaf margins), resembling spider webs. It flowers in July, with pink flowers that are raised on stems and are hermaphroditic (having both male and female organs). This plant, and the subspecies Sempervivum arachnoideum subsp. tomentosum, have gained the Royal Horticultural Society's Award of Garden Merit....read more on Wikipedia.