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Asteraceae Group 6: Dichotomous Key
... 10a. Capitulescence consisting of (10–) 20–70 (–100) capitula in a compact, corymb-like array (in part) 10b. Capitulescence consisting of 1–3 capitula 11a. Herbage g...
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Utricularia: Dichotomous Key
...with 1–3 (–4) scales below the lowest flowers (usually lacking scales in U. gibba); 10a. Leaf-like branches 15–60 mm long, divided 6 or more times [Fig. 711]; traps 1.5–5 mm long; ...
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Asclepias: Dichotomous Key
...to 1 (–2) cm long 2b. Corona with horns within the hoods [Figs. 362, 363]; umbels borne on peduncles 1–10 cm long [Figs. 361, 364] 3a. Leaf blades narrow-linear, 1–3 (–5) mm ...
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Anemone: Dichotomous Key
...achenes 1.5–3 cm tall, mostly 1–1.5 times as tall as broad; styles pale or crimson-tipped; beak of the achene 1–1.5 mm long
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Poaceae Group 5: Dichotomous Key
... 11a. Glumes acute at the apex, unawned or merely with a tiny mucro up to 0.5 (–0.7) mm long [Fig. 278] 11b. Glumes long-acute at the apex, usually with an awn 0.5–10 mm long (i...
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Artemisia: Dichotomous Key
...corollas 1–2.8 mm long 12a. Reproductive stems (4–) 6–19 dm tall; leaf blades with ultimate segments wider than 2 mm; capitula with 7–10 marginal carpellate flowers 12b. Repr...
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Solanum: Dichotomous Key
...5–7 (–10) flowers 13b. Berries 5–9 mm wide, with 50–110 seeds 1.4–1.8 mm long, with 4–15 sclerotic granules, dull or lustrous; anthers 1.3–2 mm long; pollen 17–23 μm in diameter; style 2...
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Cucurbitaceae: Dichotomous Key
...601], dehiscent by 2 apical pores; staminate corolla 6-merous; herbage glabrous or nearly so 3b. Fruit not inflated, 1-seeded, 1.3–1.5 cm long, in clusters of 3–10 [Fig. 602], indehiscent...
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Diphasiastrum: Dichotomous Key
...0.5–15 cm long; strobili 1–4 per stalk; plants commonly taller than 12 cm, usually dendroid 2a. Trophophylls of the lower rank 1–2 mm long, similar in length to the trophophylls of the u...
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Section Stellulatae: Dichotomous Key
...suborbicular, 1.5–3 mm wide, 1–1.7 times as long as wide (in part) 5b. Perigynia ovate to broad-ovate, (1.25–) 1.4–2 (–2.1) mm wide, (1.4–) 1.6–2.5 times as long as wide 4b. ...