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Image of softhair coneflower
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Softhair Coneflower

Rudbeckia mollis Ell.

Description

provided by eFloras
Annuals, biennials, or perennials, to 100 cm (taprooted). Stems softly pilose to woolly (hairs spreading, 1–4 mm, longer ones toward bases). Leaves: blades oblong to oblong-lanceolate (not lobed), margins entire or serrate, apices acute to obtuse, faces softly pilose to woolly, gland-dotted; basal petiolate, 5–12 × 0.5–2 cm, bases attenuate; cauline sessile, (elliptic to pandurate) 1.5–10 × 1–4 cm (mid largest, bases cuneate to auriculate). Heads borne singly or (2–12) in loose, corymbiform arrays. Phyllaries to 1.5 cm (faces hairy and gland-dotted). Receptacles conic to hemispheric; paleae 5–6.5 mm, apices acute, abaxial tips hirsute and gland-dotted. Ray florets 10–16; laminae linear to oblanceolate, 20–40 × 4–7 mm, abaxially hairy and gland-dotted. Discs 10–20 × 12–18 mm. Disc florets 200–400+; corolla bases yellowish green, otherwise brown-purple, 3–4.2 mm; style branches ca. 1.5 mm, apices acute to obtuse. Cypselae 2.5–3.5 mm; pappi 0 or coroniform, to 0.1 mm. 2n = 38.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 53, 58 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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