(–4) × 2–4 (–5) mm. Phyllaries broadly ovate, sparsely canescent. Florets: pistillate 6–10; bisexual 18–25; corollas pale-yellow, 0.8–1.2 mm, glabrous. Cypselae
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on page 530. Mentioned on page 529. Stems 1.5–2.5 cm. Leaves firm when wet, long-ligulate to broadly lanceolate from an oblong base, 1.5–2 mm, base oblong
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Mentioned on page 530, 558. Stems 2–3 cm, dark green or yellowish-brown, branches straight. Leaves erect or slightly homomallous, 0.5–1 mm; margins erect
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ones in having bigger tubercles (more than 1.9 × 0.7–1 mm in western plants; less than 1.9 × 0.7 mm in eastern R. persicarioides in the narrow sense), and
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appears in FNA Volume 5. Treatment on page 531. Mentioned on page 497, 506, 530. Illustrator: Yevonn Wilson-Ramsey Copyright: Flora of North America Association
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Treatment appears in FNA Volume 5. Treatment on page 529. Mentioned on page 497, 530, 531. Illustrator: Yevonn Wilson-Ramsey Copyright: Flora of North America
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6–8 mm, glabrous. Ray-florets 0 or 11–13; corolla laminae (yellow, purple streaks in veins) 10–14+ mm. Disc-florets 60–75+; corolla-tubes 2–2.5 mm, limbs
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(nodding, proximalmost on peduncles to 50 mm) in racemiform arrays 10–17 × 1–2 cm. Involucres globose, (4–) 5–8 × 4–10 mm. Phyllaries ovatelanceolate to elliptic
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(–3) mm, usually as long as width of inner tepals; tubercles 3, equal or subequal, apex obtuse, smooth. Achenes light-brown, 0.9–1.75 × 0.6–1 mm. 2n =
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on rhizoids. Sexual condition dioicous. [Capsule theca 2.2–2.5 mm, operculum 0.5–0.9 mm, peristome absent to rudimentary. Spores 12–15 µm.] Phenology:
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Mentioned on page 25, 485, 530, 533. Stems 1–2 cm. Leaves firm when wet, long-ligulate to broadly lanceolate from an oblong base, 1–2.5 mm, base often oblong and
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fasciculate, 2–8-flowered. Pedicels 5–7 mm. Flowers: sepals linear-oblong, 4–6 mm, not awned, stellate-pubescent; petals 5–6 mm; stamens 50–60. Capsules subglobose
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linear-oblong to subulate, 1.5–4 mm, grading into phyllaries, mucronulate. Involucres turbinate to cylindro-campanulate, 7–12 mm. Phyllaries in 6–9 series, appressed
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laminae 8–13 × 1–1.5 mm. Disc-florets (18–) 23–40; corollas yellow, 4–6.5 mm, tubes shorter than funnelform throats, lobes lanceolate, 0.8–1 mm. Cypselae tan
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rhizomes short or long, well developed. Ligules (1) 2-4 mm, obtuse to acute; blades 1.5-2.5 (3) mm wide, flat or folded, thin and soon withering, flag leaf-blades
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for (1/6) 1/5 – 1/3 their length; ligules 3-7 mm, sparsely to moderately scabrous, acute; blades 1.5-2.5 mm wide, flat, folded, or somewhat involute. Panicles
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15–80 x 3–8 mm, undivided, proximal margins entire, distal entire or serrate, surfaces hispid to tomentose. Pedicels 0–1 mm. Flowers: calyx 10–15 mm, hispid
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Pedicels 4–10 mm. Flowers: calyx 8–12 mm, tomentose, lobes 5, triangular, 1.5–3 mm, apex entire or pinnatifid to serrate, glabrous; corolla 17–27 mm, tube violet-red
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racemiform arrays (internodes 2–14 mm). Peduncles 0 or (ascending) 2 (–7) mm. Involucres turbinate, 6–8 × 5–7 mm. Phyllaries in 3–4 (–5) series, mostly
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40–100 × 2–6 mm, ± lax, glabrous; cauline not reduced to scales (mostly 10+ mm). Heads 2–6, borne singly. Involucres cylindric, 18–25 mm × 5–7 mm, apices narrow
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