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Helianthus 'Lemon Queen' Perennial Sunflower ... Zone: 4 - 9; Class: Perennial; Siting: Full sun; ... Helianthus 'Lemon Queen'
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www.heronswood.com/perennials_perennials-f-to-h_heliant...
www.heronswood.com/perennials_perennials-f-to-h_helianthus/
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Perennial Sunflowers are large plants, 5-8' tall, with 2" single or double, lemon yellow flowers in July-Sept.; zones 4-7s/10w for 'Flore Pleno', 4-9S/10W for 'Lemon Queen'. Roughly hairy stems and leaves. Combine with Heliopsis, Rudbeckia, Helenium, Hemerocallis, Ornamental Grasses.
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www.whiteflowerfarm.com/growguide-245.html
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The trick to designing your garden with perennial flowers is making sure you have ... 7. Helianthus (Perennial Sunflower). Helianthus (Perennial Sunflower) ...
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gardening.about.com/od/fallinthegarden/tp/Top-10-Fall-B...
gardening.about.com/od/fallinthegarden/tp/Top-10-Fall-Bloomers.htm
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Helianthus microcephalus - Perennial Sunflower. Helianthus microcephalus with Eupatorium 'Little Joe' in the background. With New York Ironweed, ...
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www.lazyssfarm.com/Plants/Perennials/H_files/H_Images/h...
www.lazyssfarm.com/Plants/Perennials/H_files/H_Images/helianthus_microcephalus.htm
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Heritage Perennial Profile ... ; Here's the complete description for this Heritage Perennial. Drop in any time to see the rest of our collection. ... This back-of-the-border perennial is widely grown in Europe, and finally available here. Plants are tall and upright, forming a bushy clump of green leaves,
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www.perennials.com/seeplant.html?item=1.252.230
www.perennials.com/seeplant.html?item=1.252.230
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Stout and usually very tall perennials, with showy yellow flowers, the best known of which is Helianthus multiflorus fl. pl., of which plenty may be seen in Euston Square and other places in London. A... ... Free Books / Gardening / The Wild Garden / ... This section is from the book "The Wild Garden", by W. Robinson.
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chestofbooks.com/gardening-horticulture/Wild-Garden/Per...
chestofbooks.com/gardening-horticulture/Wild-Garden/Perennial-Sunflower-Helianthus-Rudbeckia-Silphium.html
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Helianthus atrorubens ... Helianthus mollis ... unknown perennial helianthus...
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www.marksgardenplants.com/helianthus.htm
www.marksgardenplants.com/helianthus.htm
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However, an abundance of wild Helianthus species are potential sources of genes for disease resistance and Sclerotinia is no exception. Interspecific amphiploids of crosses between wild perennial Helianthus species and cultivated line P21 have been produced and maintained by sib-pollination.
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www.canalpoint.sugarcane.usda.gov/research/publications...
www.canalpoint.sugarcane.usda.gov/research/publications/publications.htm?seq_no_115=193543
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Phenotypic traits and DNA markers were investigated in 97 plants derived from cross-pollination between annual diploid cultivated sunflower (Helianthus annuus) and the perennial diploid species H. mollis or H. orgyalis, and the reverse reciprocal crosses.
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aob.oupjournals.org/cgi/content/abstract/89/1/31
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