Osmorhiza longistylis
 
Smooth Sweet Cicely

Upper Half of Plant

Moose Mountain Provincial Park
02-July-2009

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Longistylis: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species. 
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rays spreading-ascending to divaricate; NOT [rays ascending or spreading-ascending]

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bractlets of inflorescence present and persistent; NOT [bractlets absent or very small and caducous]

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flowers white; NOT [flowers yellow or greenish]

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styles 2-3 mm long; NOT [styles less than 0.5 mm long]

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fruit 18-22 mm long; NOT [fruit 10-20 mm long]

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fruit base long-tapering, becoming caudate with conspicuous tales]; NOT [fruit obtuse at base, not caudate]

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fruit bristly-hispid; NOT [fruit glabrous]

 

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Osmorhiza: Answers to key questions in Budd's Flora  and Flora of Alberta leading to this genus. 
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plants NOT with a bluish tinge

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foliage NOT spiny

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lowest leaves (and the upper) compound

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

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leaves with more than 3 leaflets

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leaves often divided into 5 or more segments; NOT [leaves usually divided into 3 segments each with 3 leaflets]

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leaves ternately divided; NOT [leaves palmate with 5-7 large leaflets], NOT [foliage digitately compound] , NOT [leaves pinnately divided]

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leaves divided into leaflets of unequal size; NOT [leaves divided into leaflets of about equal size]

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leaflets NOT palmate

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leaflets NOT 10-30 cm wide

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leaflets finely to deeply serrate; NOT [leaflets entire or with a few lobes]

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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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bracts NOT spiny

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

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

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fruit more than 1 cm long

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fruit flattened but wingless; NOT [fruit strongly flattened, broadly winged]

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fruit usually bristly-hairy (glabrous in O. occidentalis) ; NOT [fruit glabrous]

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fruit NOT covered with short, hooked spines

 

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

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

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ovary inferior

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styles 2; NOT [styles 5]