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Eutrochium: Dichotomous Key
... 1a. Capitula with (8–) 9–22 flowers; capitulescence or its divisions flat-topped [Fig. 411]; stems typically green with anthocyanic spots or streaks 1b. Capitula with (4–) 5–9 (...
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Cynoglossum: Dichotomous Key
... 1a. Inflorescence consisting of (1–) 3 (–4) helicoid cymes borne on a common, terminal peduncle (i.e., none borne in the axils of leaves); mericarps ascending, concealing the persistent styl...
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Lobelia: Dichotomous Key
...tube 12–15 mm long 1b. Flowers 7–18 mm long; corolla lacking open slits 3a. Leaves all basal, with 2 hollow tubes extending the entire length; all the anthers pubescent at th...
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Valerianella: Dichotomous Key
...(1938). 1a. Fertile locule of fruit conspicuously thickened by a corky mass on the abaxial (i.e., back) surface [Fig. 553]; cymules with spatulate outer bractlets and spinulose-ciliate...
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Trifolium: Dichotomous Key
...(1918), and has been reported in other floras since (e.g., Kartesz 1999). The specimen on which this record was based was determined to be T. incarnatum by Sorrie and Somers (1999). Trif...
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Strophostyles: Dichotomous Key
... 1b. Legumes glabrate at maturity, (26–) 30–96 mm long; peduncles stout, ligneous, 0.8–1.3 mm thick; corollas 8–15 mm long; keel petals with a long, curved beak that protrudes well beyond the ...
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Fraxinus: Dichotomous Key
...7–14 (–16) × (2.5–) 3–6.5 cm 3b. Leaf rachis glabrous to puberulent, but without patches of tomentum; leaflets (3–) 5–11 ×1–3 (–4) cm
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Ludwigia: Dichotomous Key
...(1944), Peng et al. (2005). 1a. Leaves opposite, the blades 5–30 mm long, abruptly narrowed to a broad petiole; flowering stems prostrate or creeping, often rooting at the nodes ...
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Dicentra: Dichotomous Key
... 1a. Stems arising from bulbs; inflorescence simple (i.e., the pedicels arising from an unbranched axis); corolla largely white or cream (sometimes portions of the corolla pink or yellow-tinge...
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Mimulus: Dichotomous Key
...lobes 1.5–8 mm long 2b. Leaves borne on petioles 10–20 mm long [Fig. 763]; pedicels 2–10 (–15) mm long [Fig. 763]; calyx lobes 1–1.5 mm long 1b. Corolla largely yellow, pube...