Copyright: Flora of North America Association Stems ascending to erect, 45–150 (–200) cm, glaucous. Leaves glabrous, glaucous; basal and proximal cauline 75–130
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texensis Friesner Treatment appears in FNA Volume 20. Treatment on page 99. Mentioned on page 98. Perennials or subshrubs, 40–150 cm. Stems (simple or branched) glabrous
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Plants 15–35 (–50) cm. Stolons none. Basal leaves (ephemeral) 3–5-nerved, narrowly oblanceolate or narrowly elliptic, 25–150 (–200) × 4–20 (–25) mm, tips mucronate
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yellow, laminae oblong to oblanceolate, 20–40 × 5–12 mm, abaxially hairy. Discs 12–25 × 12–20 mm. Disc-florets 150–400+; corollas greenish yellow proximally
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abaxial often glabrescent; basal petiolate, 20–65 × 8–20 cm, bases attenuate; cauline sessile, 15–40 × 4–15 cm, bases auriculate to truncate. Heads (usually
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abaxially on veins); basal petiolate, 17–60 × 10–25 cm; cauline petiolate or sessile, 8–30 × 5–20 cm (blades among heads not lobed). Heads borne singly
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Treatment on page 161. Plants perennial; cespitose, not rhizomatous. Culms 4-150 cm, usually erect, sometimes decumbent, glabrous, not branched above the base;
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Wilson-Ramsey Copyright: Flora of North America Association Annuals, (2–) 20–100 (–400+) cm (stems sometimes rooting at proximal nodes). Leaves (rarely in 3s)
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appears in FNA Volume 20. Treatment on page 521. Mentioned on page 475, 477, 501, 509, 516, 522. Perennials (10–) 50–150 (–200) cm, colonial; fleshy long-rhizomatous
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hairs usually whitish, sometimes rufous. Panicles 75–200+-flowered, flat-topped or rounded, 6–18 cm diam.; peduncles ± whitish-villous. Pedicels densely
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fusiform, vertical rootstock. Stems erect, branched from above middle, 80–150 (–200) cm. Leaves: ocrea deciduous or partially persistent at maturity; blade ovatelanceolate
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also axillary, paniclelike; plants (30-)50-150(-200) cm; leaf blades narrowly lanceolate to ovate, 5-20 × 1.4-8 cm, not glaucous > 2 2 Achenes 2.6-3.8 mm,
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of North America Association Plants perennial, densely cespitose, 80–150 (–200) cm, bases deep-set, stout; rhizomes absent. Leaves erect or ascending, 1/2–2/3
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410. Illustrator: Cindy Roché Copyright: Utah State University Culms 60-150 (200) cm, densely pubescent for less than 5 mm below the nodes, particularly the
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Copyright: Flora of North America Association Stems ascending to erect, 50–100 (–150) cm, glabrous. Leaves basal and cauline, glabrous; basal and proximal cauline
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strigosa Small Treatment appears in FNA Volume 20. Treatment on page 132. Mentioned on page 130. Plants 50–90 (–150) cm; rhizomes deep-seated, main, short, or
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blackish green distally, yellowbrown to dark-brown proximally. Stems usually to 2 cm, occasionally branching; rounded-pentagonal in transverse-section, hyalodermis
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Annuals, (5–) 25–150 (–200) cm. Leaves: sessile or petioles (± winged) 5–15 (–35+) mm; blades ± elliptic to lanceolate, (20–) 40–100 (–200+) × 10–30 (–70)
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somesii Treatment appears in FNA Volume 20. Treatment on page 156. Mentioned on page 150, 157, 158, 166. Plants 50–200 cm (solitary or clustered); rhizomes short
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Volume 21. Treatment on page 35. Annuals, 20–150+ cm. Leaf-blades ± deltate to rhombic-deltate, 40–200+ × 25–150+ mm, lengths 1–2 (–3+) times widths, margins
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