Flora of North America species comparison

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

erect or horizontal proximally and erect distally, simple or branched, bearing elevated rosettes.

erect, usually simple, 5–10(–15) cm;

leaf blades triangular-ovate, base short-spurred;

offsets not formed.

erect or slightly recurved, simple, 5.5–19 cm, (sometimes ciliate, papillose);

leaf blades lanceolate, base spurred (spurs unlobed or 3-lobed);

offsets caducous, axillary.

(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, ascending, sessile;

blade yellow-green (rosette leaves with 5 green to purple veins), not glaucous, oblong-elliptic, oblong-lanceolate, lanceolate, or ovate, subterete, 4.4–14 × 1.8–3 mm (somewhat longer and wider on flowering shoots), base short-spurred, scarious, apex acuminate or acute, (unlobed to 3-lobed on flowering shoots, surfaces sometimes ciliate marginally, papillose).

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

branches not recurved, rarely forked;

bracts similar to leaves, smaller.

cymes, 4–25-flowered, 3-branched;

branches recurved or not, sometimes dichotomously forked;

bracts similar to leaves, smaller.

absent or to 1 mm.

to 1 mm, (sometimes ciliate, papillose).

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, distinct, green to yellow, lanceolate or ovate, equal, ca. 1.5–3.5 × 0.8–2 mm, (base broadly spurred), apex acuminate or acute, (sometimes papillose apically);

petals spreading, distinct, white, creamy white, or yellow, elliptic-lanceolate, carinate basally, 5–11 mm, apex acute with mucronate appendage;

filaments white;

anthers yellow, orange, or red;

nectar scales orange or yellow, square.

stellately patent in fruit, distinct, yellowish.

stellately spreading in fruit, connate basally, straw colored streaked with reddish brown.

= 40, 60, 80, 100, 120.

= 16.