Flora of North America species comparison

trailing (nonflowering shoots ascending at tip), laxly branched, not bearing rosettes.

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

erect, usually simple, 5–10(–15) cm;

leaf blades triangular-ovate, base short-spurred;

offsets not formed.

erect, simple, 1–5 cm, (papillose);

leaf blades elliptic, base short-spurred;

offsets not formed.

(usually deciduous, if persistent, then blade white, soft, papery), alternate, (densely imbricate), spreading, sessile;

blade yellow-green, not glaucous, triangular-ovate, terete to semiterete (elliptic in cross section), (2–)5(–8) × 1–4 mm, base obtusely short-spurred, not scarious, apex obtuse.

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, 2–12-flowered or flowers solitary, monochasially (1–)2(–3)-branched;

branches not recurved, rarely 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.

absent or to 1 mm.

absent or to 1.5 mm.

5-merous;

sepals erect to spreading, distinct basally, green, oblong-ovate, unequal, 2–3 × 1.3–2.3, mm, apex obtuse;

petals spreading, distinct, bright yellow, oblong-ovate to lanceolate, not carinate, 5–9 mm, apex acute to acuminate;

filaments yellow;

anthers yellow, (oblong);

nectar scales yellowish green, square.

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 patent in fruit, distinct, yellowish.

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

= 40, 60, 80, 100, 120.

= ca. 36–50, 68–72.