Flora of North America species comparison

rhizomes, horizontal, much-branched, bearing rosettes.

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

erect, simple, (6–)10–28 cm;

leaf blades suborbiculate or obovate, base not 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.

alternate, ascending to spreading, sessile to subsessile;

blade green, glaucous, not strongly pruinose, obovate or oblanceolate, subterete, 10–36 × 5–16 mm, base not spurred, not scarious, apex emarginate to retuse.

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).

panicles, 10–120-flowered, 3–20-branched;

branches not recurved, dichotomously forked;

bracts similar to leaves, smaller.

cymes, 4–25-flowered, 3-branched;

branches recurved or not, sometimes dichotomously forked;

bracts similar to leaves, smaller.

2–5 mm.

to 1 mm, (sometimes ciliate, papillose).

5-merous;

sepals (persistent, closely appressed to corolla tube), erect, connate basally, greenish, ovate, equal, 3.2–3.5 × 1–3 mm, apex subacute;

petals (persistent until fruiting), erect basally, divergent apically, connate basally, creamy white, yellowish white, or pale yellow, elliptic-oblong or oblanceolate-oblong, cucullate, 5–9(–11.5) mm, apex abruptly pointed;

filaments pale yellow;

anthers yellow;

nectar scales white or yellow, subreniform.

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.

erect in fruit, distinct, brown, (strongly 5-veined).

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

= 90.

= 16.