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Digitalis: Dichotomous Key
... 1a. Lobes of the calyx broad-lanceolate to obovate, mostly 6–9 mm wide; corolla purple, pale pink, or white; leaf blades coarsely serrate 1b. Lobes of the calyx linear to lanceol...
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Rhamnus: Dichotomous Key
... 1a. Flowers with 5 sepals, 0 petals, and 5 stamens; leaves alternate; branches unarmed; plants 0.15–1 m tall 1b. Flowers with 4 sepals, petals, and stamens [Fig. 824]; leaves alt...
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Amelanchier: Dichotomous Key
...stems 1–3 m tall; petals (10–) 11–15 (–20) mm long; leaf blades with 12–15 pairs of primary veins that mostly enter the teeth [Fig. 828]; hypanthium open and shallow, (3.5–) 4–6 (–8) mm wide ...
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Malus: Dichotomous Key
... 1a. Leaf blades (at least those on long shoots) usually lobed, conduplicate in bud; pomes with some sclerenchyma cells 1b. Leaf blades unlobed, convolute in bud (conduplicate in ...
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Saxifraga: Dichotomous Key
...6–10 mm long; stems solitary or a few together, 8–20 cm tall 3b. Upper leaves without vegetative bulbils; inflorescence of 1–4 flowers; petals 3–5 mm long; stems cespitose, 2–10 cm tall ...
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Najas flexilis (nodding waternymph, wavy waternymph)
...usually 1-seeded, does not separate or split open at maturity). Inflorescence length: 1.1 mm–4.7 mm. Underwater leaf blade width: ...
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Suaeda linearis (annual sea-blite)
...utricle 1–2 mm long (vs. S. linearis, with sepals keeled on the abaxial surface and utricle 1–1.5 mm long).: Suaeda maritima Synonyms: Do...
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Quercus velutina (black oak)
... 11. Stamen number: 7. Specific leaf type: the leaves are simple (i.e., lobed or unlob...
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Gilia achilleifolia (blue gilia)
...with 16-36 seeds (vs. G. achilleifolia, with the corolla mostly 1-2 times as long as the calyx, axis of inflorescence eglandular, and capsule with 10-18 seeds).: Gilia tricolor ...
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Arceuthobium pusillum (dwarf mistletoe)
... 1.0 mm–1.0 mm. Final leaf segment length (compound lvs only): 0.0 mm–0.0 mm. Stamen number: ...