Lathyrus ochroleucus
 
Cream-Coloured Vetchling

Early Leaves and Inflorescence

Moose Mountain Provincial Park
26-May-2006

Note that the key to the families in Budd's Flora requires that the calyx be regular.  In fact, the calyx teeth are unequal in this species.

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Ochroleucus:  Answers to key questions in Budd's Flora (BF) and Flora of Alberta (FOA) leading to this species.  
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stipules large, often half as long as the leaflets; NOT [stipules small]

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leaflets 3-4 pairs; NOT [leaflets 4-6 pairs], NOT [leaves with only 2 leaflets]

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leaves glabrous; NOT [leaves finely pubescent beneath]

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flowers creamy white or yellowish; NOT [flowers purplish]

 

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Lathyrus: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus.
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herbs; NOT shrubs

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plants climbing

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terminal leaflet replaced by a tendril; NOT [terminal leaflet normal]

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wings of flower free from the keel; NOT [wings of flower coherent with the keel]

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style flattened; NOT filiform

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style bearded along the inside; NOT [style bearded at the tip]

 
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Leguminosae:  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 semi-aquatic; 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 with stipules

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calyx regular

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

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flowers irregular in shape

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corolla pea-like; NOT [corolla with one petal spurred or sac-like]

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stamens usually separate or partly so; NOT [stamens united into a column]

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fruit a legume; NOT [fruit a 3-valved capsule]