Crassifolia: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species. 

	plants perennial; NOT [plants annual]
	plant freely branching, often matted; NOT [plant with a few short, erect or ascending stems]
	plants glabrous, not glandular-viscid; NOT [plants more or less glandular-hairy and viscid]
	basal leaves sessile; NOT [basal leaves petioled, ovate or rhombic-ovate]
	leaves linear or elliptic-lanceolate, usually much more than 4 times as long as broad; NOT [leaves ovate-lanceolate, less than 4 times as long as broad]
	leaves mostly 6-20 mm long; NOT [leaves mostly 2-8 mm long]
	leaves mostly 2-6 mm wide; NOT [leaves mostly 1-4 mm wide]
	leaves soft, slightly fleshy; NOT [leaves firm, keeled]
	bracts of inflorescence all green, not scarious; NOT [bracts of inflorescence, at least the uppermost, scarious, whitish]
	sepals 2-3 mm long; NOT [sepals 3.5-6 mm long]
	petals equalling or longer than the sepals; NOT [petals much shorter than the sepals or none]
	petals cleft more than halfway, almost to base; NOT [petals cleft less than halfway]

Stellaria: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus. 

	plants NOT with woody base
	plants without stipules; NOT [plants with small, ovate, papery, scarious stipules at junction of stem and leaf, and stem and branch]
	sepals entirely separate; NOT [sepals united part way, forming a tube]
	petals present; NOT [petals absent]
	petals lacking claws; NOT [petals clawed]
	petals deeply notched or 2-cleft; NOT [petals entire or merely notched at apex]
	styles usually 3; NOT [styles usually 5]
	ovary NOT stipitate
	fruit dehiscent; NOT [fruit indehiscent]
	capsule short, ovoid or ellipsoid or oblong; NOT [capsule long, cylindric, often curved]
	capsule opening with twice as many valves or teeth as there are styles; NOT [capsule opening with as many entire (or later 2-cleft) valves as there are styles]
	capsule usually opening with 6 valves; NOT [capsule usually opening with 10 teeth]
	fruit several-seeded; NOT [fruit 1-seeded]

Caryophyllaceae: Answers to key questions in Budd's Flora  leading to this family. 

	herbs; NOT [shrubs or trees]
	plants terrestrial or semiaquatic; NOT [plants aquatic, leaves submerged or floating]
	terrestrial plants; NOT [mud plants with small axillary flowers]
	plants NOT with colored milky juice
	plants with more than one normal leaf
	leaves opposite, whorled, or basal; NOT [some or all leaves alternate]
	leaves NOT glandular-dotted
	plants without large petal-like bracts; NOT [plants with an involucre of 4 petal-like bracts]
	flowers with two floral rings, and with each petal distinct from the others
	sepals more than 2; NOT [sepals 2]
	stamens NOT united at base; NOT [stamens united at base into 3-5 bundles]
	styles 2 or more; NOT [styles single]