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).

procumbent, creeping, or spreading, with ascending or erect branches, (tuberculate), not bearing rosettes.

erect, simple, (5–)11(–18) cm;

leaf blades ovate or elliptic, base not spurred;

offsets not formed.

erect, simple, 1–5 cm, (papillose);

leaf blades elliptic, base short-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, (imbricate to subimbricate), erect to spreading, sessile;

blade bright green, sometimes glaucous, suboblong to ovate, somewhat flattened to terete, 4–9 × 1–2 mm, base widened, short-spurred, not scarious, apex obtuse, (surfaces smooth or papillose).

cymes, 5–60-flowered, 3–6-branched;

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

bracts similar to leaves, smaller.

3-parted cymes, 2–10-flowered or flowers solitary, simple or monochasially 1-branched;

branches erect to slightly recurved, not forked;

bracts similar to leaves, sometimes imbricate.

to 0.3 mm.

absent or to 1.5 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 erect to suberect, distinct basally, green to pinkish, linear or lanceolate, slightly unequal, 3–5 × 0.2–1 mm, apex obtuse;

petals spreading, distinct basally, white, suboblong, not carinate, 5–6.5 mm, apex obtuse, shortly mucronate;

filaments white to pale pink;

anthers red or purplish;

nectar scales whitish to pale pink, oblong, (retuse).

stellately spreading in fruit, connate basally, brown.

divergent or stellately spreading in fruit, distinct, red to purple or stramineous with reddish to purplish striations.

= 16.

= ca. 36–50, 68–72.