Flora of North America species comparison

rootstocks, horizontal, simple, bearing basal rosettes (axillary shoots with subterranean, white stems that detach easily and bear terminal rosettes of colorless leaves).

erect, simple or branched, not forming rosettes.

erect, simple, (5–)11(–18) cm;

leaf blades ovate or elliptic, base not spurred;

offsets not formed.

erect, simple, 3–15 cm;

leaf blades linear-oblong or obovate-elliptic, base not spurred;

offsets not formed.

alternate, spreading, outermost ones petiolate (petiole 4–5 mm);

blade green or greenish white, not glaucous, oblanceolate, obovate, or narrowly spatulate, laminar, 2–16 × 1.4–3.2 mm, base not spurred, not scarious, apex blunt, (surfaces papillose).

alternate, spreading-erect, sessile;

blade pea green, not glaucous, linear-oblong or oblong-elliptic, terete or subterete, ca. 6 × 2 mm, base not spurred, not scarious, apex obtuse, (surfaces papillose).

cymes, 5–60-flowered, 3–6-branched;

branches often strongly recurved, each 1 or 2 times dichotomously forked;

bracts similar to leaves, smaller.

corymbiform cymes, 3–15-flowered, 2–3-branched;

branches not recurved, not forked;

bracts similar to leaves, smaller.

to 0.3 mm.

absent or to 1 mm.

(5–)6(–7)-merous;

sepals erect, slightly connate basally, green, ovate, equal, 1.5–2 × 0.7–1.1 mm, apex acute;

petals spreading, distinct nearly to base, canary yellow, keel green or dark red, lanceolate to oblong, carinate, 4–6 mm, apex subobtuse to acute;

filaments yellow;

anthers yellow;

nectar scales deep yellow, subquadrate.

5-merous;

sepals spreading, distinct, green, lanceolate, unequal, 1.5–2.5 × 0.5–1 mm, apex acute;

petals divergent in distal 1/2 from erect base, distinct, yellow, narrowly lanceolate, slightly carinate, 3–5 mm, apex acute;

filaments yellowish or greenish;

anthers yellow;

nectar scales yellow, oblong.

stellately spreading in fruit, connate basally, brown.

stellately spreading in fruit, distinct, light brown or yellow.

= 16.

= 22.