Cymopterus acaulis

           Plains Cymopterus

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Buffalo Pound Provincial Park
27-April-2007

Note the absence of pubescence.

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Cymopterus: Answers to key questions in Budd's Flora (BF)  and Flora of Alberta (FOA) leading to this genus. 
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plants less than 3 dm tall, usually 1-2 dm; NOT [plants more than 3 dm tall]

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plants NOT with a bluish tinge

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plants scapose; NOT [plants with stem leaves]

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foliage NOT spiny

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leaves much divided, with leaflets or segments numerous; NOT [leaves simple or divided into few well-developed leaflets]

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lowest leaves (and the upper) compound; NOT [lowest leaves simple]

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leaves pinnate, trifoliate, or simple; NOT [leaves palmate with 5-7 large leaflets], foliage NOT digitately compound

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leaves 2 or more times pinnate or ternate; NOT [leaves once pinnate]

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NOT [leaves usually trifoliate; leaflets palmate, 10-30 cm wide]

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plants lacking axillary bulblets; NOT [plants with axillary bulblets largely replacing flowers]

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inflorescence NOT bluish

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flowers NOT in dense globose heads]

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umbel compound; NOT [umbel simple]

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umbel many-flowered; NOT [umbel few-flowered]

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involucral bracts small; NOT [involucral bracts large]

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involucral bracts slightly or not dissected; NOT [involucral bracts pinnately dissected]

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 bracts NOT spiny

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flowers white; NOT [flowers yellow]

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fruits more than 5 mm long; NOT [fruits 3-4 mm long]

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fruit generally 3 times as long as broad or less; NOT [fruit several times longer than broad]

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fruit oblong to elliptical; NOT [fruit linear to clavate]

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fruits flattened dorsally (at right angles to the styles); NOT [fruits more or less rounded in cross-section]

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fruit conspicuously winged on marginal and dorsal nerves; NOT [fruit winged on the marginal nerves only or wingless]

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fruit NOT spiny; NOT [fruit covered with short, hooked spines]

 

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Umbelliferae: Answers to key questions in Budd's Flora and Flora of Alberta 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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stems hollow

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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 in umbels

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

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parts of flowers mostly in fives; NOT [parts of flowers in twos or fours]

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

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stamens 10 or fewer; NOT [stamens usually more than 10]

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styles 2; NOT [styles 5]

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ovary inferior; NOT [ovary superior]