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Rosaceae: Dichotomous Key
...or 2 immediately below the cyme 22a. Leaflets toothed along the margins and at the apex; petals 5–10 mm long; androecium with many stamens (in part) 22b. Leaflets 3 (–5) toot...
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Asteraceae Group 4: Dichotomous Key
... 22a. Disk flowers yellow; capitula with 3–6 rays [Fig. 412], commonly 5; pappus of fimbriate scales 22b. Disk flowers white; capitula with numerous ray flowers; pappus a tiny cr...
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Cyperus bipartitus (shining flatsedge)
...5-20. Flower number per cluster: 2-5. Leaf septa: the leaf blades do not have transverse septa. ...
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Scirpus: Dichotomous Key
... 2a. Leaves 14–22 (–26) on each stem; floral scales red-brown, orbicular or nearly so; spikelets mostly broad-ovoid 2b. Leaves 3–12 on each stem; floral scales green-brown or brow...
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Caprifoliaceae: Dichotomous Key
...12a. Leaf blades regularly serrate; fruit a capsule 13a. Corolla 12–20 mm long, zygomorphic, yellow, turning red in age; capsules glabrous; seeds not winged; petioles glabrous to sparsely...
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Iris: Dichotomous Key
...stems 2.5–4.5 cm tall; capsules sharply triangular in cross-section 2b. Plants caulescent, the stems (5–) 10–120 cm tall 4a. Sepals ornamented with toothed ridges; capsule 6-...
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Viburnum: Dichotomous Key
...12a. Some leaf blades acuminate at apex; petioles 10–20 (–35) mm long, with an undulate- or denticulate-margined wing 12b. Leaf blades acute to obtuse at apex; petioles 5–12 mm long, with...
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Eupatorium: Dichotomous Key
...(2006). 1a. Capitula with 9–23 flowers; leaves with either evident petioles longer than 1 cm or the blades connate at the base 2a. Leaf blades narrowly to broadly tapering...
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Ribes: Dichotomous Key
...5–20 mm long; styles 7–14 mm long 10a. Stamens 6–8 mm long; hypanthium purple to green-purple; calyx lobes 4–5 mm long; nodal prickles 2–5 (–11) mm long 10b. Stamens 9–12 mm ...
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Lysimachia: Dichotomous Key
...1.4–1.7 (–2) mm long; capsules 1.5–2 mm long, with 5–13 seeds 2b. Leaves opposite; pedicels 3–35 mm long; calyx 3.5–5 mm long; corollas (2–) 3–7 (–10) mm long; capsules 4–6 mm long, with ...