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Chloris cucullata (hooded windmill-grass)
... 1.0 NA–2.0 NA. Spikelet length: 1.5 mm–2.0 mm. Lemma awn base: the awn is attached right...
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Dactyloctenium radulans (button grass)
...for 1–6 mm (vs. D. radulans, with the inflorescence subglobose, congested, with branches 4–15 mm long; axis of each branch prolonged beyond the apical-most spikelet for 1–1.5 mm).: Dactylo...
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Saxifragaceae: Dichotomous Key
... 1a. Perianth 4-merous; petals absent; flowers with 4 or 8 stamens that are set in the notches of an 8-lobed disk; at least the lower leaves opposite 1b. Perianth 5-merous; petals...
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Isoetes: Dichotomous Key
...(1900), Kott and Britton (1983), Taylor et al. (1993). 1a. Megaspores echinate with thin, sharp spines; leaves deciduous 1b. Megaspores variously ornamented, but without a...
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Allium: Dichotomous Key
... 1a. Leaves flat, (15–) 20–80 mm wide, produced in early season and soon withering, usually not present during anthesis; capsule prominently 3-lobed 1b. Leaves flat or terete, 1–2...
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Lycopodiaceae: Dichotomous Key
...(1993), Haines (2003a). 1a. Upright shoots unbranched, lacking winter bud constrictions, produced from horizontal shoots that travel over the surface [Fig. 14]; horizontal shoots lacki...
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Poaceae: Dichotomous Key
...[Figs. 181, 227, 269] 2a. Spikelets with 2 or more evident florets [Figs. 232, 238, 282] 3a. Inflorescence an open to dense panicle [Figs. 180, 183, 198] 4a. Spi...
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Liliaceae: Dichotomous Key
...(1.3–) 1.5–10 cm long; fruit a capsule; stems arising from bulbs or corms 5a. Leaves appearing all basal (actually borne on a slender, mainly subterranean stem), usually mottled with ligh...
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Section Paniceae: Dichotomous Key
...62–111% of the total inflorescence height 4a. Achenes 1.2–1.6 (–1.8) mm wide; ligules of leaves (0.6–) 1–6 mm long, (0.8–) 1–2 times as long as wide; leaf blades green; carpellate spikes ...
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Trillium: Dichotomous Key
...(1997). 1a. Leaf blades usually mottled; flowers sessile; petals erect or arching inward 1b. Leaf blades not mottled; flowers borne on a peduncle 1–10 cm long; petals eith...