10. Stems erect to decumbent, 20–200 cm, puberulent. Leaves: petiole to 10 mm; blade linear to lanceolate, 1–6 cm. Inflorescences open or dense spikes
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glabrous, stipitate-glandular. Peduncles 5–25 cm. Involucres 12–20 × 15–20 (–30) mm. Ray-florets (15–) 18–60 (–85); corollas usually lavender, seldom white
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in FNA Volume 21. Treatment on page 411. Mentioned on page 409. Plants 6–60 cm; proximal indument grayish to whitish, arachnoid to densely lanuginose, or
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sprawling, 10–70 (–100) cm, glabrous or hairy proximally. Leaves: blade ovate to lanceolate, 6–50 × 2–15 mm, glabrous. Pedicels 30–100 mm. Flowers: calyx
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9. Treatment on page 347. Mentioned on page 20, 348, 351. Shrubs, (10–) 30–60 dm, glabrous or stellate-hairy, mostly eglandular (except in inflorescence)
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mostly 2 times longer than wide, 0.7–0.9 (–1.1) × (0.4–) 0.5 mm, trabeculae 30–60, rather obscure and crowded. Tubercles brownish, pyramidal, usually depressed
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Mentioned on page 52, 57, 58, 60. Illustrator: Barbara Alongi Copyright: Flora of North America Association Stems 20–230 cm. Leaves: petiole (0–) 2–10 (–20)
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glabrous and glaucous. Inflorescence units 2-30+ per culm; peduncles usually 5-20 mm, with (1) 2 rames; rames 3-4 cm, exerted at maturity, terminating in a sessile-pedicellate
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in FNA Volume 21. Treatment on page 475. Mentioned on page 476. Plants 60–200 cm. Stems usually purple-spotted, sometimes uniformly purple, usually solid
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laminal cells 30–75 (–100) × 4–6 µm, smooth; basal juxtacostal cells 7–10 µm wide. Branch leaves 0.2–1.3 (–1.9) × 0.2–0.5 (–1) mm; costa to 60–90% leaf length;
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obscuring surface. Leaves green, sometimes brown, linear to linear-lanceolate, 3–7 cm, not fleshy, margins plane, involute, 3–7-lobed, apex acute to rounded; lateral
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erect or ascending, 15–40 cm. Leaves: petiole absent or indistinct, blade linear to linear-elliptic or lanceolate, (25–) 30–60 (–115) × 1.5–14 (–15) mm
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Stems: submersed flexuous, to 60 cm; emersed ± ascending, 10–30 (–45) cm. Leaf-blades 7–23 × 0.3–2 mm. Peduncles 2–6 cm. Phyllaries 2–4 mm, margins minutely
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larger, shallowly serrate-margined, narrowly ovate leaves; inflorescences 5–14 cm; and sessile glands at the base of the leaf blade. Berry, P. E. et al. 2005
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internodes 1–3 cm, scales fugaceous, 4–7 mm, thinly membranous, not fibrous. Culms terete, often with to 10 blunt ridges when dry, 4–60 cm × 0.3–1.8 mm,
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Mentioned on page 511, 513, 531. Plants 4–12 cm. Leaves: basal 6–8, blade elliptic or spatulate, 35–120 x 10–30 mm, undivided or 1-pinnatifid or 2-pinnatifid
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hairy to glabrate); blades ovate to lanceolate or narrowly lanceolate, 20–60+ × 10–30+ mm, bases abruptly contracted to tapering, margins subentire or denticulate
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6 6 Shrubs, 60–180 cm (rounded, stems wandlike); involucres 1.5–2 mm diam Artemisia filifolia 6 Biennials or perennials, (10–)30–80(–150) cm; involucres
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many-branched, woody; rhizomes and trailing stems to 60 cm. Stems ascending to erect, ± green, 2–20 cm, densely glandular-hairy throughout, internodes of
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cymes; stems 20–60(–90) cm; rhizomes short. Oxalis stricta 27 Petals 12–20 mm; inflorescences 1–3-flowered, umbelliform cymes; stems 10–25 cm; rhizomes long
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