Flora of North America species comparison

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

procumbent, becoming erect, (reddish-shiny proximally), long-branched, not bearing rosettes.

erect, usually simple, 5–10(–15) cm;

leaf blades triangular-ovate, base short-spurred;

offsets not formed.

erect, simple or branched, 2–4 cm;

leaf blades orbiculate to broadly ovate, base not 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, (densely set), erect to slightly spreading, sessile;

blade green with prominent red dots, not glaucous, sometimes waxy, orbiculate to broadly obovate, semiterete, 2.5–3.5(–5) × 2–2.5 mm, base not spurred, not scarious, apex rounded to acute.

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

branches not recurved, rarely forked;

bracts similar to leaves, smaller.

subscorpioid cymes, 10–20-flowered, simple to 2-branched;

branches erect to spreading or recurved, sometimes forked;

bracts oblong, ca. 3 mm, base broadly spurred.

absent or to 1 mm.

absent.

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 suberect, distinct basally, greenish, sometimes with reddish striations, subovate, unequal, 2–2.5 × 0.1–1.6 mm, apex obtuse, (papillose);

petals erect to spreading, distinct, yellow with prominent, short, longitudinal red stripes, lanceolate, carinate, 4.5–5 mm, apex subobtuse, narrowly mucronate;

filaments whitish or pale yellow;

anthers yellow;

nectar scales inconspicuous.

stellately patent in fruit, distinct, yellowish.

spreading in fruit, distinct, tan or brown with reddish striations.

= 40, 60, 80, 100, 120.

= 52, 53, 104.