Chamaerhodos erecta
 
Chamaerhodos

Flower Side (Sepal)

Oro Lake Regional Park
23-June-2011

Note that the key to the genera in Flora of Alberta requires that calyx-bractlets be present.  In fact, this species does not have calyx-bractlets.

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Chamaerhodos: Answers to key questions in Budd's Flora  and Flora of Alberta leading to this genus. 
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plant entirely herbaceous; NOT [plant a half-shrub, with trailing woody stems], NOT [shrubs or trees]

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plant with dense rosettes

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leaves 2-4 ternately divided into linear lobes; NOT [leaves 3-foliolate, the leaflets wedge-shaped], NOT [leaves simple, usually toothed]

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hypanthium lacking hooked prickles; NOT [hypanthium with hooked prickles]

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petals small, little if any longer than the sepals; NOT [petals usually longer than the sepals]

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petals white; NOT [petals yellow]

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stamens 5; NOT [stamens 10-many]

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carpels 5-20; NOT [carpels 10-many], NOT [carpels 2]

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carpels becoming achenes (sometimes on a fleshy receptacle]; NOT [carpels becoming drupelets (raspberry-like)]

 

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

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

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

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

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stamens usually separate or partly so, not in a column; NOT [stamens numerous, united into a column]

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ovary of one or more carpels, either separate or enclosed by a fleshy receptacle; NOT [ovary of 5 united carpels]