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Rubus: Dichotomous Key
...al. 1967, 1968a, 1968b, 1969a, 1969b, 1970). Followed here is Hodgdon and Steele (1966), a treatment of intermediate nature that provides names to some of the variation seen on the New England landsca...
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Salix key for mature vegetative material: Dichotomous Key
...than 10 mm 11a. Leaf blades 2.5–8 cm wide, 2–3 times as long as wide, pubescent with only white hairs; stems 8–15 m tall 11b. Leaf blades 0.3–2.3 (–3.4) cm wide, 2.3–9 times ...
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Boraginaceae: Dichotomous Key
... 11a. Stems retrorsely prickly hispid [Fig. 491], weak and scrambling; inflorescence axillary, of 1–3 flowers borne on short, recurved pedicels; calyx accrescent in fruit, becoming 10–20 mm wi...
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Ranunculaceae: Dichotomous Key
... 10a. Flowers zygomorphic 11a. Upper sepal arched or hooded; petals not spurred 11b. Upper sepal neither arched nor hooded, prolonged into a spur; upper petal or all...
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Poaceae Group 4: Dichotomous Key
...281] 16a. Lemmas awned, the awn attached to the abaxial surface of the lemma well below the apex [Fig. 208] 17a. Spikelets 9–10 mm long; awn of upper lemmas of spikelet 10–16...
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Geranium: Dichotomous Key
...Pedicels 10–60 mm long, 1.8–8.2 times as long as the sepals [Fig. 671]; style beak 0–0.5 (–1) mm long or 3.5–4.5 mm long 11a. Plants perennial, from rhizomes; style beak 0–0.5 (–1) mm lon...
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Veronica: Dichotomous Key
...style 1–3 mm long 17a. Pedicels 15–40 mm long in fruit [Fig. 778]; corolla (5–) 8–11 mm wide; styles 1.8–3 mm long; capsules 5–9 mm wide 17b. Pedicels 6–15 mm long in fruit; ...
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Suaeda calceoliformis (American sea-blite)
...utricle 1–2 mm long (vs. S. calceoliformis, with 1 or 2 sepals larger than the others and corniculate-appendaged, and utricle 1–1.5 mm long).: Suaeda maritima sepals +...
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Galium divaricatum (Lamarck's bedstraw)
...0.5–1 mm in diameter, yellow-red, and schizocarps 1–1.4 mm wide, finely papillose on the surface).: Galium aparine corolla 1–1.7 mm in diameter, white, and schizocarps...
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Aristida longespica (red threeawn)
...shores. 1a. Central awn (8–) 12–27 mm long; lateral awns (1–) 6–18 mm long; glumes 4–11 mm long; flowers with 1 or 3 anthers … 3a. A. longespica var. geniculata (Raf.) Fern.1b. Central awn 1–10 (–14...