Erysimum inconspicuum
 
Small-Flowered Prairie Rocket

Upper Leaf Top

Oro Lake Regional Park
24-June-2011

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Inconspicuum: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species. 
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plants NOT alpine

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pubescence mostly or entirely of 2-branched hairs; NOT [pubescence mostly or entirely of trifid or stellate hairs]

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flowers smaller; NOT [flowers large, 2-4 cm across]

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petals shorter than 10 mm; NOT [petals longer than 10 mm] (BF)

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petals 6-12 mm long; NOT [petals 3-5 mm long], NOT [petals 15-25 mm long] (FOA)

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flowers yellow; NOT [flowers pink-purple or purple]

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style 1.0-1.5 mm long; NOT [style generally more than 1.5 mm long]

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stalks of seedpods not one-quarter as long as pods; NOT [stalks of seedpods almost half as long as pods]

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siliques 2-10 cm long; NOT [siliques 13 cm long]

 

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Erysimum: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus. 
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plants of lowland areas; NOT [plants mostly of alpine areas]

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plants 2-10 dm tall; NOT [plants generally less than 2 dm tall]

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stem leaves entire to dentate, not lobed; NOT [stem leaves deeply lobed, lyrate to tripinnate] (BF)

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leaves more or less entire; NOT [leaves divided] (FOA)

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cauline leaves not auriculate and clasping; NOT [cauline leaves auriculate, clasping]

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pubescence consisting of hairs, attached at the middle; NOT [pubescence consisting of simple or several-forked hairs]

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petals yellow; NOT [petals white, pink-tinged, pink or purple]

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fruits NOT flattened

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pods NOT compressed at right angles to the central partition

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pods usually at least 4 times as long as wide; NOT [pods usually not more than 3 times as long as wide] (BF)

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fruit much longer than broad; NOT [fruit 2-3 times longer than broad or shorter] (FOA)

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pods scarcely beaked; NOT [pods with a long, distinct beak]

 

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Cruciferae: Answers to key questions in Budd's Flora  leading to this family. 
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herbs; NOT [shrubs or trees]

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plants terrestrial or semiaquatic; NOT [plants aquatic, leaves submerged or floating]

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plants NOT with colored milky juice

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plants with more than one normal leaf

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some or all leaves alternate; NOT [leaves opposite, whorled, or basal]

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leaves without stipules, or having glands; NOT [leaves with stipules]

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flowers with two floral rings, and with each petal distinct from the others]

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calyx regular; NOT [calyx irregular, some sepals smaller than others]

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sepals 4

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corolla regular in shape; NOT [corolla irregular in shape]

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petals 4; NOT [petals 5]

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stamens usually 6, four long and two short; NOT [stamens 6, of equal length], NOT [stamens usually more than 10]

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ovary superior; NOT [ovary inferior]

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carpels 1 or 2; NOT [carpels 3-5]