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Juniperus: Dichotomous Key
...(1996) was based on specimens of J. virginiana with a high proportion of subulate (i.e., juvenile) leaves. Reference: Adams (1993). 1a. Leaves whorled, not concealing the branch...
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Uvularia: Dichotomous Key
... 1a. Leaf blades sessile, minutely papillose-denticulate; stems angled in cross-section distally; rhizomes elongate, 10–15 cm long, bearing scattered fibrous roots; stolons present ...
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Trichophorum: Dichotomous Key
... 1a. Stems terete, smooth 1b. Stems trigonous, usually scabrous on the angles 2a. Perianth bristles white, flattened, 3–5 times longer than the inflorescence; spikele...
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Group 9: Herbaceous angiosperms with superior ovaries, actinomorphic flowers, connate petals, and a solitary carpel or 2 or more connate carpels: Dichotomous Key
...5–10 narrow leaves and 1 or more, 1-flowered peduncles; plants of tidal shores (in part) 6b. Stems upright or vining, the leaves normally 1 or 2 from a node, sometimes more; inflorescence...
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Hydrangeaceae: Dichotomous Key
...petals 1–3 mm long and 10 stamens; marginal flowers of inflorescence often enlarged, sterile, with only 3 or 4 petaloid sepals (enlarged flowers sometimes absent) [Fig. 682]; fruit with 10–15 ribs, de...
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Scrophulariaceae: Dichotomous Key
Scrophulariaceae: Dichotomous Key. You are here: Dichotomous Key > Scrophulariaceae. Scrophulariaceae. 1a. Amphibious pla...
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Carex Group 6: Dichotomous Key
... 1a. Leaf sheaths, and often the blades, pubescent 2a. Perigynia (6.5–) 7–12 mm long, with a beak 2.1–4 mm long that is terminated by 2 teeth (1.2–) 1.5–3 mm long; style persisten...
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Section Granulares: Dichotomous Key
... 1a. Staminate spike on a peduncle 1–35 mm long, shorter than to barely exceeding the uppermost carpellate spike; stems cespitose on short, inconspicuous rhizomes; lowermost spike usually aris...
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Elodea: Dichotomous Key
...[Fig. 129], with a spathe 8–13.5 mm long, with sepals 3–4 mm long; carpellate flowers with sepals 2.0–3.5 mm long 1b. Leaves 0.9–1.7 (–2.4) mm wide, averaging 1.3 mm, weak, pointed at th...
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Triglochin: Dichotomous Key
... 1a. Leaves usually equaling the height of the flowering stem, arching outward from the sheath [Fig. 156], 0.5–1 mm wide; racemes 2–5 (–7) cm tall 1b. Leaves usually shorter than ...