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Panax: Dichotomous Key
... 1a. Leaflets mostly 6–15 cm long, with long petiolules, acuminate at the apex; plants 2–6 dm tall, in anthesis in July; flowers mostly bisexual; drupe red; root elongate and fusiform ...
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Cicuta: Dichotomous Key
... 1a. Axils of the upper leaves bearing bulbils; ultimate leaf segments linear, up to 5 mm wide; schizocarps 1.5–2 mm long; styles becoming 0.5–0.7 mm long 1b. Axils of the leaves ...
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Ageratum: Dichotomous Key
... 1b. Peduncles pubescent with eglandular hairs; involucral bracts oblong-lanceolate, abruptly tapering to an awn-like point 0.5–1 mm long, the abaxial surface eglandular, ciliate on the margin...
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Grindelia: Dichotomous Key
... 1b. Leaf blades toothed with mostly acute teeth, the apex of each tooth apiculate to setose (leaves rarely subentire); middle involucral bracts terminated by green appendages 1–1.7 (–3) mm l...
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Lasthenia: Dichotomous Key
... 1a. Involucre 5–10 mm tall; anthers of disk flowers triangular at apex; styles of disk flowers triangular at apex; pappus of 1–7 awns or awn-tipped scales or absent; leaf blades entire ...
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Plagiobothrys: Dichotomous Key
...(1999), but specimens are unknown. 1a. Attachment scar of mericarp and often basal portion of inner keel positioned within a shallow trough created by folds of the pericarp; outer suf...
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Berteroa: Dichotomous Key
... 1b. Siliques 6–12 ×3.5–5 mm, compressed, ± glabrous or with some hairs near the margins of the valves; fruiting pedicels widely ascending; style 1–2 mm long; seeds with a winged margin...
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Camelina: Dichotomous Key
...4–14 (–17) mm long; seeds 0.8–1.4 (–1.5) mm long 1b. Plants often ± glabrate, when pubescent the simple hairs not exceeding the length of the branched hairs; silicle body (5.5–) 7–9 ...
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Arabidopsis: Dichotomous Key
...×0.8–1 mm, flat; petals (4–) 6–8 (–10) mm long; seeds 0.8–1.4 mm long; native biennial or perennial plants of cliffs, outcrops, and rocky slopes 1b. Siliques (8–) 10–15 (–18) ×0.5–...
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Diplotaxis: Dichotomous Key
... 1b. Plants annual or biennial, herbaceous throughout; leaves borne chiefly at the base of the plant; silique not stipitate; fruiting pedicels (6–) 10–13 (–15) mm long; sepals 3–5 mm long ...