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Papaveraceae: Dichotomous Key
... 11a. Flowers solitary on short peduncles, with petals 20–30 mm long; fruit 15–30 cm long at maturity 11b. Flowers arranged in umbels or panicles, without petals or with petals 4–...
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Eragrostis: Dichotomous Key
...Lemmas 1.5–2 mm long, lacking glandular pits along the keel (rarely with 1 or 2 obscure glands); sheaths pubescent on the margin and often near the apex; spikelets 4–7 (–11) mm long, with 7–12 (–20) f...
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Sparganium androcladum (branched bur-reed)
...(1 to 1.4 in) in diameter, versus 1.5 to 2.5 cm (0.6 to 1 in) in American bur-reed. Habitat: lacustrine (in lakes or ponds), riverine (in rivers or streams), shores of rivers or lakes All Chara...
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Corynephorus canescens (gray club-awn grass)
...mm–1.0 mm. Spikelet length: 2.9 mm–4.3 mm. Anther length: 1.4 mm–1.6 mm. Leaf ligule l...
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Fuirena pumila (dwarf umbrella-sedge)
...S1), state endangered (code: SE) Information from Dichotomous Key of Flora Novae Angliae: 1. ...
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Eleocharis: Dichotomous Key
...[Figs. 111, 112, 118] 7a. Achenes gray at maturity, longitudinally striate, with numerous, fine horizontal cross-lines, ca. 2 times as tall as wide [Fig. 111]; floral scales all bearing ...
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Cyperus: Dichotomous Key
...0.05–0.12 mm long 12b. Spikes spreading; distance between floral scales on same side of rachis 1.1–1.5 mm; floral scales tipped by a mucro 0.2–0.25 mm long 11b. Floral scales...
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Rosa: Dichotomous Key
... 10a. Pedicels (10–) 20–60 mm long, stout; petals 25–35 (–45) mm long (in part) 10b. Pedicels 6–20 mm long, moderately thick to slender; petals 8–25 mm long 11a. Fo...
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Plantaginaceae: Dichotomous Key
...771, 774, 775]; leaves all basal (opposite and borne on a stem in P. arenaria) [Fig. 771] 4a. Scape 1- to 3-flowered [Fig. 771]; fruit an achene, 1-locular, 1-seeded; plants aquati...
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Platanthera: Dichotomous Key
... 11a. Labellum 8–19 mm long; spur 20–35 mm long; orifice of spur keyhole-shaped 11b. Labellum 4–8 mm long; spur 4–10 mm long; orifice of spur triangular to keyhole-shaped ...