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Description ( anglais )

fourni par eFloras
Plants 30–100 cm . Stems erect to ascending, green when young, fastigiately branched, glabrous, gland-dotted, resinous. Leaf blades ascending, sometimes spreading when older, filiform to narrowly oblanceolate (adaxially sulcate to concave), 10–20 × 1–2 mm, midnerves not evident, apices acute, sometimes apiculate, faces glabrous, regularly gland-dotted (in circular, deep pits), resinous; axillary leaf fascicles sometimes present, shorter than subtending leaves. Heads in irregular cymiform arrays (to 7 cm wide). Peduncles 3–15 mm (bracts 3–20+, mostly leaflike, distal scalelike). Involucres turbinate, 3–5 × 3–5 mm. Phyllaries 12–20 in 3–4 series, tan, linear to lanceolate, 1–3.5 × 0.5–1 mm, unequal, mostly chartaceous, sometimes herbaceous-tipped, erect, midnerves raised, somewhat expanded apically, subapical resin ducts usually present, (margins scarious to narrowly membranous, glabrous or ciliate) apices erect, acute, sometimes apiculate, abaxial faces glabrous. Ray florets 3–6; laminae 4–5 × 1–2 mm. Disc florets 6–16; corollas 5–6 mm. Cypselae tan to brown, turbinate to narrowly oblanceolate, 3.5–4 mm (ribs ca. 5), villous; pappi off-white to brown, 3.5–5 mm. 2n = 18.
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 20: 51, 54, 60 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras

Synonym ( anglais )

fourni par eFloras
Haplopappus laricifolius A. Gray, Smithsonian Contr. Knowl. 5(6): 80. 1853 (as Aplopappus)
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 20: 51, 54, 60 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras