Flora of North America species comparison

rhizomatous, procumbent or creeping, much-branched, bearing terminal rosettes.

prostrate, becoming erect, branched, bearing rosettes in clusters and secondary shoots in leaf axils.

erect, simple, 3–14 cm;

leaf blades spatulate-oblong or elliptic-oblong, base not spurred;

offsets not formed.

erect, simple or branched, ca. 18 cm;

leaf blades elliptic to suborbiculate or elliptic-linear, base not spurred;

offsets not formed.

alternate, spreading, petiolate;

blade green, often glaucous or pruinose, spatulate, terete to laminar, 7–19 × 4.5–10 mm, base not spurred, not scarious, apex rounded or truncate, submucronate, (surfaces papillose marginally).

alternate, (easily detaching and sometimes forming new plants), divergent, slightly upturned, sessile;

blade blue-green, purplish, or green, sometimes glaucous, ovate, elliptic-ovate, or lanceolate, subterete, 3.2–6.2 × 1.9–2.9 mm, base not spurred, not scarious, apex obtuse or apparently acute.

cymes, ca. 30-flowered, ca. 3-branched;

branches not recurved, forked;

bracts oblong-spatulate or linear, ca. 3 cm, base not spurred.

cymes, 3–22-flowered, 3-branched;

branches not or slightly recurved, not forked;

bracts narrowly elliptic to linear.

2–8 mm.

absent or 3–5 mm.

5-merous;

sepals spreading to erect, connate basally, green or yellow-green, glaucous or pruinose, lanceolate, linear-lanceolate, oblong-ovate, or obovate, equal, ca. 2.5 × 1.5 mm, apex acute or obtuse;

petals widely spreading from short, erect base, distinct or slightly connate basally, yellow, linear to oblanceolate, not carinate, 4.5–9 mm, apex acute;

filaments yellow;

anthers yellow;

nectar scales yellow, reniform or nearly square.

5-merous;

sepals erect, slightly connate basally, green, lanceolate or lanceolate-oblong, equal, ca. 3 × 1.5 mm, apex obtuse or subacute;

petals widely spreading from short, erect base, distinct, deep yellow, elliptic-lanceolate or lanceolate, slightly cucullate, 6.7–8.8 mm, apex obtuse or, rarely, acute with minute mucronate appendage;

filaments yellow;

anthers yellow;

nectar scales yellow, subquadrate.

divergent in fruit, connate basally, brown.

erect in fruit, connate basally, brown.

= 30.

= 32, 36.