Flora of North America species comparison

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

decumbent, few-branched, (finely papillose), bearing terminal rosettes.

erect, simple, 3–14 cm;

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

offsets not formed.

erect, simple, 4–20 cm, (papillose);

leaf blades obovate to obovate-spatulate or elliptic, base short-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).

in whorls of 3, rarely 2 or 4 or decussate, spreading to ascending, shortly petiolate or sessile;

blade pale yellow-green to dark green, not glaucous, obovate to obovate-spatulate or elliptic, laminar, 10–17 × 7–11 mm, base truncately short-spurred, not scarious, apex truncate or rounded, sometimes emarginate, (surfaces finely papillose or crenulate).

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

branches not recurved, forked;

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

cymes, 5–25-flowered, 3-branched, (sometimes papillose);

branches recurved in bud, becoming ± erect at anthesis, not forked;

bracts similar to leaves.

2–8 mm.

absent or to 1 mm, (papillose, almost glandular).

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.

4(–6)-merous;

sepals spreading to erect, connate basally, pale yellow-green, lanceolate-oblong or elliptic, equal, 2.4–5 × 0.8–1.7 mm, apex obtuse, (finely papillose);

petals erect to spreading, distinct, white, elliptic-lanceolate, abaxially carinate, adaxially channeled, 5.4–8.9 mm, apex acute;

filaments white, (flattened basally);

anthers red or purple;

nectar scales yellow or pale yellow, oblong or subquadrate.

divergent in fruit, connate basally, brown.

widely divergent in fruit, distinct, brown.

= 30.

= 32.