Anaphalis margaritacea
 
Pearly Everlasting

Two Plants

Cypress Hills
29-July-2011

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Anaphalis: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus. 
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tall plants; NOT [low plants]

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plants perennial with fibrous roots, often with rhizomes or stolons, but lacking a taproot; NOT [plants perennial with taproot, or low spreading annuals]

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plants rhizomatous but lacking stolons; NOT [plants often stoloniferous]

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juice watery; NOT [juice milky]

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plants more or less white-woolly; NOT [plants not at all white-woolly]

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basal leaves soon deciduous, not markedly larger than the numerous well-developed cauline leaves; NOT [basal leaves generally forming a persistent tuft or rosette, stem seldom very leafy]

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basal leaves, if any, not cordate or sagittate; NOT [basal leaves cordate or sagittate]

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stems leafy; NOT [leaves mostly basal, with stem leaves reduced]

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receptacle naked; NOT [receptacle densely bristly]

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flower heads with all florets tubular

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dioecious or nearly so, the heads of at least some plants wholly staminate or pistillate; NOT [heads all with outer pistillate flowers and central perfect flowers], NOT [flowers all perfect] (FOA)

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pistillate heads commonly with a few central staminate flowers; NOT [heads strictly dioecious] (FOA)

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bracts of involucre dry, parchmenty or membranous, not green; NOT [bracts of involucre not dry or parchmenty, usually green] (BF)

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involucral bracts mostly with dry, scarious, thin, white to yellowish or brownish tips; NOT [involucral bracts not markedly scarious at the tip] (FOA)

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stamens united to form a tube around the pistil

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pappus of capillary bristles, sometimes plumose; NOT [pappus of scales, or of awns, or a crown or none]