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Larix: Dichotomous Key
...1–2 cm long, with 10–15 (–30) scales that are glabrous abaxially [Fig. 44] 1b. Branchlets pendulous; bark of main stem shedding as large, plate-like scales; seed cones 2–3.5 cm long, with...
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Commelina: Dichotomous Key
...upper 2 petals; capsules 2-locular; seeds rugose and pitted, in addition to reticulate 1b. Spathes bright green, without contrasting veins; all petals blue; capsules 3-locular; seeds ret...
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Group 7: Herbaceous angiosperms with superior ovaries and zygomorphic flowers: Dichotomous Key
... 21b. Anthers with 2 locules, dehiscing by 2 longitudinal slits or the locules connate near the apex and opening by a distal, V-shaped slit, usually sagittate at the base 22a. Pla...
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Leersia: Dichotomous Key
...panicle 2 or more at some of the nodes; florets with 3 stamens; lemmas 4–7.5 mm long; principal leaf blades 15–30 cm long 1b. Branches of the panicle 1 per node; florets with 2 stamens; l...
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Centaurium: Dichotomous Key
...(2004) for the dismantling of this group (the segregate genus Schenkia also known from New England). 1a. Flowers on pedicels mostly (1.5–) 2–5 mm long; corolla lobes 2–4 mm long...
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Montia: Dichotomous Key
...1–2 mm long; petals 1–2 mm long; seeds 0.5–1.2 mm long; leaves opposite [Fig. 805], the blades 3–20 mm long 1b. Sepals 3–7 mm long; petals 4–6.5 mm long; seeds 1.2–2.6 mm long; leaves alt...
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Diodia: Dichotomous Key
...with 2 sepals; corolla salverform, 8–11 mm long; gynoecium with 2 linear stigmas; fruit 6–9 mm long, glabrous or villous 1b. Calyx with 4 sepals; corolla funnelform, 5–6 mm long; gynoeciu...
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Verbena: Dichotomous Key
...925] 2a. Floral bracts 8–15 mm long; calyx 3–4 mm long; spikes 2–10 (–15) × (0.6–) 1–1.5 (–2) cm in fruit 2b. Floral bracts ca. 1–1.3 mm long; calyx 2–2.5 mm long; sp...
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Agrostis: Dichotomous Key
...(2007). 1a. Palea 2-nerved, 0.6–1.4 mm long, (40–) 50% or more as long as the lemma; plants mostly with rhizomes and/or stolons 2a. Ligules 0.5–2 mm long, usually wider th...
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Artemisia: Dichotomous Key
...involucre 2.5–4.5 mm tall; disk 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 carpellat...