Flora of North America species comparison

root-stocks, ascending, much-branched, bearing rosettes.

erect, simple or branched, not forming rosettes.

erect or decumbent, simple or branched, 4–30(–40) cm;

leaf blades oblanceolate, spatulate, obovate, or suborbiculate, base not spurred;

offsets not formed.

erect, simple, 3–15 cm;

leaf blades linear-oblong or obovate-elliptic, base not spurred;

offsets not formed.

alternate, erect to spreading, sessile;

blade green, glaucous or not, not pruinose, oblanceolate, spatulate, or obovate, subterete or somewhat flattened, 10–50 × (4.5–)6–33 mm, base not spurred, not scarious, apex truncate to rounded or obtuse, emarginate or barely notched.

alternate, spreading-erect, sessile;

blade pea green, not glaucous, linear-oblong or oblong-elliptic, terete or subterete, ca. 6 × 2 mm, base not spurred, not scarious, apex obtuse, (surfaces papillose).

elongate, paniculate cymes, 12–80-flowered, monochasially 3+-branched;

branches not recurved, 2-forked;

bracts similar to leaves, smaller.

corymbiform cymes, 3–15-flowered, 2–3-branched;

branches not recurved, not forked;

bracts similar to leaves, smaller.

0.6–6.3 mm.

absent or to 1 mm.

5-merous;

sepals erect, (closely appressed to corolla tube), slightly connate basally, pale green, ovate or lanceolate, equal, (2–)2.6–5.1 × 2 mm, apex acute or subacute, (rarely obtuse in var. flavidum);

petals basally erect, divergent in distal 1/2, connate basally, pink, pinkish white, or white to yellowish white, lanceolate-oblong, oblanceolate-oblong, or elliptic-oblong, not carinate, 4–11 mm, apex obtuse, shortly mucronate or aristate;

filaments white, greenish white, or pink;

anthers red, reddish purple, red-brown, or yellow;

nectar scales white, yellow, or pink, reniform or transversely oblong.

5-merous;

sepals spreading, distinct, green, lanceolate, unequal, 1.5–2.5 × 0.5–1 mm, apex acute;

petals divergent in distal 1/2 from erect base, distinct, yellow, narrowly lanceolate, slightly carinate, 3–5 mm, apex acute;

filaments yellowish or greenish;

anthers yellow;

nectar scales yellow, oblong.

erect in fruit, distinct, brown.

stellately spreading in fruit, distinct, light brown or yellow.

= 22.