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Hudsonia: Dichotomous Key
...(1979). 1a. Leaf blades narrow-ovate to triangular, closely appressed, densely tomentose, 1–3 mm long; ovary and capsule glabrous; pedicels absent or up to 1 (–3) mm long ...
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Montia: Dichotomous Key
... 1a. Sepals 1–2 mm long; petals 1–2 mm long; seeds 0.5–1.2 mm long; leaves opposite [Fig. 805], the blades 3–20 mm long 1b. Sepals 3–7 mm long; petals 4–6.5 mm long; seeds 1.2–2.6...
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Sighting: Eubotrys racemosa at Grassy Pond, Acton
...21, 2014, 2:23 p.m. by RussellStafford Description or comments: Photo from 6/1/13 [Note the long racemes of flowers, Lyonia mariana has an umbel-like cluster that lacks a long, central axis, t...
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Tagetes: Dichotomous Key
...0.5–1 mm long 1b. Involucre 13–19 mm tall, composed of 7–11 involucral bracts; capitula with 8 or more ray flowers, the rays 10–30 mm long; disk corollas 10–15 mm long; cypsela body 6.5–1...
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Barbarea: Dichotomous Key
...only 1 or a few on the margins of these organs. 1a. Basal leaf blades with 4–10 pairs of lateral lobes; siliques (40–) 53–70 (–80) mm long; fruiting pedicels 1.2–1.8 mm thick ...
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Erigeron: Dichotomous Key
...than 1 mm 6a. Capitula with 50–100 ray flowers, the rays 0.8–1.7 mm wide; disk corollas (4–) 4.5–6 mm long; body of cypsela 1.3–1.8 mm long; plants with slender, elongate, superficial rhi...
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Fagaceae: Dichotomous Key
...enclosing 1–3 nuts at maturity; winter buds not clustered toward distal end of twig 2b. Carpellate flowers 1 per involucre; involucre not appearing spiny, enclosing 1 nut at maturity; win...
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Wolffia: Dichotomous Key
... 1a. Thalli ovoid to globose, 1–1.5 times as deep as wide, without pigment cells in the vegetative tissue, thus the upper surface transparently green in life 1b. Thalli boat-shape...
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Cenchrus: Dichotomous Key
... 1a. Bur-like fascicles with 45–75 bristles [Fig. 204], 8.3–11.9 mm long, the outer bristles terete, the inner bristles 0.5–0.9 (–1.4) mm wide at the base; carypsis 1.5–2.6 mm wide ...
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Glyceria: Dichotomous Key
... 10a. Leaves with blades 4.5–12 (–15) mm wide and usually smooth sheaths; second glume 1.5–2.7 mm long; apex of lemma ± flat; anthers 0.5–1.2 mm long 10b. Leaves with blades (6–) ...