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The following species in the flowering plant genus Cirsium, the plume thistles, are accepted by Plants of the World Online. [1] A 2022 molecular study reassigned many species to other genera, but Cirsium remains a speciose genus. [ 2 ]
Cirsium horridulum is a biennial herb up to 250 centimetres (100 in) tall, with a large taproot and fleshy side roots that sometimes sprout new shoots. Leaves are up to 40 centimetres (16 in) long with thick, sharp spines along the edges.
Cirsium silvaticum Tausch Cirsium vulgare , the spear thistle , bull thistle , or common thistle , is a species of the Asteraceae genus Cirsium , native throughout most of Europe (north to 66°N, locally 68°N), Western Asia (east to the Yenisei Valley), and northwestern Africa ( Atlas Mountains ).
Cannabis seed banks are stores where growers and collectors buy marijuana seeds from. The best cannabis seed banks are mostly online seed banks, and they can deliver marijuana seeds to your doorstep.
Seed Savers Exchange, or SSE, is a non-profit organization based near Decorah, Iowa, that preserves heirloom plant varieties through regeneration, distribution and seed exchange. It is one of the largest nongovernmental seedbanks in the United States. [ 4 ]
Extensions from the leaf base down the stem, called wings, can be lacking (Cirsium arvense), conspicuous (Cirsium vulgare), or inconspicuous. They can spread by seed, and also by rhizomes below the surface (Cirsium arvense). The seeds have a tuft of hair, or pappus, which can carry them far by wind.
The Seed Library of Los Angeles: checking out seeds at a monthly meeting. Seed library shelving, USA. A seed library is an institution that lends or shares seed.It is distinguished from a seedbank in that the main purpose is not to store or hold germplasm or seeds against possible destruction, but to disseminate them to the public which preserves the shared plant varieties through propagation ...
For example, Cirsium heterophyllum has very soft spines while Cirsium spinosissimum is the opposite. [2] Typically, species adapted to dry environments are more spiny. The term thistle is sometimes taken to mean precisely those plants in the tribe Cardueae (synonym: Cynareae), [3] especially the genera Carduus, Cirsium, and Onopordum. [4]