Page 106: 3,316 results for 2
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Genus: Rosa (rose)
...with 2 entire sepals, 2 sepals with slender lobes on both margins, and 1 sepal with slender lobes on only 1 margin. A clue that a rose may be a naturalized European species and not native is the prese...
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Caryophyllaceae: Dichotomous Key
... 22b. Plants synoecious (i.e., with bisexual flowers); capsules dehiscing by 5 valves or 5 bifid teeth 23a. Plants annual; calyx 15–28 mm long; carpophores (5–) 7–12 mm long; lea...
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Group 6: Herbaceous angiosperms with inferior ovaries: Dichotomous Key
... 22a. Corolla gamopetalous [Figs. 882, 883]; stamens 3 or 4; leaves opposite or whorled, stipulate (though the stipule sometimes reduced to an interpetiolar line) (in part) 22b. C...
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Woodsiaceae: Dichotomous Key
...to 2-times divided; petiole with 2 rows of sharp or blunt marginal teeth on the swollen base (note: this feature absent in many collections but visible in the field) 5b. Leaf blade once d...
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Carex Group 1: Dichotomous Key
...(1–) 1.2–2.2 (–2.3) mm long; staminate scales 2.2–3.3 mm long (in part) 7b. Ligules 1–3.5 mm long; anthers 1.7–2.9 mm long; staminate scales 2.8–3.9 mm long (in part)
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Aristida: Dichotomous Key
...0.3–2 mm long 2a. Lower glume with 3–7 veins; awns subequal, (12–) 35–65 (–70) mm long 2b. Lower glume with 1 or 2 veins; awns subequal or distinctly unequal, 1–27 (–30) mm l...
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Calamagrostis: Dichotomous Key
...(1.5–) 2–3 (–4.5) mm; lemmas 2-nerved apical to the insertion of the awn 1b. Pubescence of the callus 20–120 (–150)% as long as the lemma [Figs. 202, 203]; rachilla prolonged behind the p...
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Dysphania: Dichotomous Key
...1.2–2.8 (–3.5) mm wide 2b. Fruits mostly horizontally oriented in the calyx, suborbicular or oval in outline, 0.6–1 mm wide 4a. Leaf blades 1.3–4.5 cm long, the lower typical...
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Asteraceae Group 3: Dichotomous Key
...0.5–2 mm long 18b. Leaves alternate 21a. Pappus of 2–8 firm, but deciduous, awns; involucral bracts squarrose and heavily resinous (in part) 21b. Pappus of scale...
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Ambrosia: Dichotomous Key
...372]; receptacle without chaff; staminate involucre with 3 evident nerves on one side; carpellate involucre 5–10 mm long in fruit 2b. Plants annual or perennial, 0.2–1 (–2.5) m high; lea...