Flora of North America species comparison

rootstocks and decumbent branches, (stout), bearing terminal rosettes.

root-stocks and erect shoots, branched proximally, sometimes bearing rosettes.

erect, simple or branched, 8–13 cm;

leaf blades spatulate or cuneate, base short-spurred;

offsets not formed.

erect or ascending, simple or branched, 1–4(–9) cm, (with small glistening patches);

leaf blades linear-oblanceolate, base truncate or spurred;

offsets not formed.

alternate, spreading, sessile;

blade lustrous light green, not glaucous, spatulate or cuneate, laminar (thickest near apex), 7–12 × 4.4–9 mm, base short-spurred, not scarious, apex broadly rounded or truncate.

alternate, spreading to ascending, sessile;

blade blue-green, not glaucous, linear-oblanceolate, terete to subterete, 4–9(–15) × 1–2 mm, base broadly spurred, not scarious, apex obtuse.

dense corymbs, 5–10-flowered, 3-branched;

branches spreading to erect, primary branch dichotomously forked;

bracts spatulate or oblanceolate, 5–8 mm, base spurred.

compact, 3-parted cymes, (5–)10–25-flowered, monochasially branched;

branches erect to spreading or recurved, rarely forked;

bracts suboblong, base truncate or spurred.

absent or 0.4–3+ mm.

absent.

5-merous;

sepals erect, connate basally, green, ovate-lanceolate, equal, ca. 3.5 × 2 mm, apex acuminate or acute;

petals erect or erect basally and divergent distally, connate basally, yellow, narrowly lanceolate, carinate, ca. 10.5 mm, apex aristate;

filaments yellowish or greenish;

anthers yellow;

nectar scales yellow, subquadrate to spatulate or oblong.

5–6-merous;

sepals erect to spreading, distinct, blue-green, linear to narrowly oblong, unequal, ca. 2–4(–6) × 0.7–1.5 mm, apex obtuse;

petals spreading, distinct, white tinged with purple, oblong, somewhat carinate, 4–7 mm, apex acute or broadly mucronate;

filaments white;

anthers purplish;

nectar scales dark pink, spatulate.

erect in fruit, connate basally, light brown or yellow.

stellately spreading in fruit, distinct, stramineous.

= 24.

= 19, 22, 24, 44, 52.