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Rosaceae: Dichotomous Key
... 11a. Inflorescence a raceme of 4–10 flowers; petals white, 12–20 mm long; fruit a 5-angled capsule with deep sinuses containing winged seeds 11b. Inflorescence a corymb or corymb...
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Rhynchospora: Dichotomous Key
...(15–) 18–20 (–21) mm long; spikes mostly in dense clusters of 10–30 1b. Achenes 1–3 mm long including the 0.1–1.7 mm long tubercle; leaf blades 0.2–3 (–5) mm wide; style deeply bifid ...
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Section Hymenochlaenae: Dichotomous Key
...0.5–1.5 mm long; leaf blades 2–5 (–7) mm wide 8b. Perigynia ellipsoid-ovoid, 3–5 mm long; achene sessile at base of perigynium; leaf blades 3–10 (–13) mm wide
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Spiranthes: Dichotomous Key
...face) 120–155 degrees [Fig. 177]; claw of labellum 0.8–1.5 mm long; maximum separation of lateral sepals from dorsal sepal mostly 0.5–1.1 mm [Fig. 177]; basal calli of labellum (0.8–) 1–1.6 (–2) mm lo...
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Panicum: Dichotomous Key
...0.8–1.8(–2.6), usually not enclosing the lower branches of the inflorescence in the sheath (i.e., the inflorescence is exserted); spikelets 1.8–2.4 mm long at maturity; upper florets 1.20–1.55 × 0.60–...
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Coreopsis: Dichotomous Key
...3–10 dm tall 8a. Ultimate segments of leaf blades linear to filiform, 0.3–1.5 mm wide; cypsela body 3–5 ×1–1.7 mm 8b. Ultimate segments of leaf blades linear to oval, ...
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Lonicera: Dichotomous Key
... 11a. Corolla 30–50 mm long, weakly zygomorphic, the 5 lobes nearly equal; seeds 4–4.5 mm long 11b. Corolla 15–30 mm long, strongly zygomorphic, with an upper and lower lip; seeds...
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Cerastium: Dichotomous Key
...0.8–0.9 (–1.1) mm long; reproductive stems 5–20 (–30) cm tall; plants growing in pristine as well as human-disturbed habitats 4b. Petals 10–15 mm long; sepals 5–8 mm long; anthers 0.9–1.2...
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Lechea: Dichotomous Key
...(1938), Wilbur and Daoud (1961), Barringer (2004). 1a. Outer 2 sepals as long as or longer than the inner 3 sepals [Fig. 586] 2a. Pubescence of stem spreading; inner (i.e...
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Stachys: Dichotomous Key
...Deane 1923a). This is not taken here as evidence of naturalization. A similar stance was taken by Mulligan and Munro (1989). References: Epling (1934), Mulligan and Munro (1989). 1a. S...