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Spartina cynosuroides (big cordgrass)
...to 2 mm long, the lateral veins usually hispid, and lower glume 1/2 to 2/3 as long as adjacent lemma).: Spartina pectinata Synonyms: Spar...
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Diphasiastrum: Dichotomous Key
...12 cm, usually dendroid 2a. Trophophylls of the lower rank 1–2 mm long, similar in length to the trophophylls of the upper rank; branches narrow, quadrangular, 1.2–2 mm wide, blue-green; ...
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Eleocharis: Dichotomous Key
...1.9–2.6 mm long; floral scales 2.5–5 mm long; plants primarily of high-pH wetlands and shores 6b. Achenes 0.9–1.3 mm long; floral scales 1.5–2 (–2.5) mm long; plants primarily of bracki...
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Section Limosae: Dichotomous Key
... 2a. Carpellate scales 1.3–1.8 mm wide, narrower than the perigynia they subtend; lateral spikes usually androgynous, (10–) 25–50 mm long; leaf blades 2–5 mm wide 2b. Carpellate s...
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Section Griseae: Dichotomous Key
...(1.8–) 2–2.6 mm wide, 1.8–2.3 (–2.6) times as long as wide; achenes borne on a stipe (0.2–) 0.3–0.4 (–0.5) mm long 5b. Perigynia obtusely trigonous in cross-section, 1.5–1.9 (–2.2) mm wid...
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Section Careyanae: Dichotomous Key
...blades 2–24 cm long 2a. Foliage strongly glaucous; leaves dimorphic—those of the vegetative shoots 10–25 mm wide, those of the flowering stems 2–6 mm wide, the former 3.8–9 times as wide ...
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Festuca: Dichotomous Key
...(1.8–) 2–2.5 mm long; leaf blades 0.3–0.7 (–1.2) mm wide, with 1–3 obscure ribs; lemmas 3–4 mm long 6b. Anthers 2.3–3.4 mm long; leaf blades (0.5–) 0.8–1.2 mm wide, with 5–7 ribs; lemmas...
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Sporobolus: Dichotomous Key
...×2–5 mm 2a. Lemmas sparsely pubescent; spikelets 2.3–6 mm long; first glume (2.2–) 2.8–4.7 mm long; caryopsis (1.1–) 1.8–2.7 mm long 2b. Lemmas glabrous; spikelets 1.6–3 mm l...
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Sanicula: Dichotomous Key
...12–25 (–117) staminate flowers per umbellet; plants perennial 2a. Sepals 1–2 mm long, rigid, narrow-subulate; schizocarps 4-6 mm long, subsessile, slightly exceeded by the persistent, sta...
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Hieracium: Dichotomous Key
...(2006c). 1a. Cypsela body 1.2–2 (–2.2) mm long, each rib on the surface of the ovary projecting to form a crenulate apex [Fig. 422]; pappus bristles mostly 25–40 in 1 series [Fig. 422]...