Spiraea douglasii Hooker (Q4430)
Spiraea douglasii is a taxon with the rank species within the genus Spiraea
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Spiraea douglasii Hooker
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Spiraea douglasii is a taxon with the rank species within the genus Spiraea
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Statements
taxon/id/Spiraea douglasii Hooker
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Spiraea douglasii Hooker
Spiraea douglasii
Hooker
FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
accepted
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CA-BC
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US-AK
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US-CA
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US-CO
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Stems erect to ascending, branched.
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Leaves: petiole 3–5 mm;
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blade bicolorous, elliptic to obovate, 3–10 × 0.5–4 cm, chartaceous, base cuneate, margins serrate distally from middle, venation pinnate craspedodromous, secondary-veins prominent, apex acute to obtuse, abaxial surface lanate to tomentose, glabrous, or pubescent, adaxial glabrous.
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Inflorescences mostly terminal, conic panicles, [5–] 8–25 × 3–6 [–10] cm height 2–4 times diam. branches glabrous or glabrescent to tomentose.
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Pedicels 1–3 mm, glabrous or tomentose.
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Flowers 2–4 mm diam.;
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hypanthia hemispheric, 1 mm, abaxial surface tomentose, adaxial glabrous;
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sepals ovate, 1 mm;
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petals light to dark-pink, ovate to obovate, 1–2 mm;
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stamens 25–35, 2–3 times petal length.
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Follicles oblanceoloid, 2.5–3 mm, shiny, glabrous, adaxial suture sometimes ciliate.
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2-4 times diam branches
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