Flora of North America species comparison

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

(primary) repent, branched, bearing axillary 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 or ascending, simple, 0.5–4.5 cm;

leaf blades obovate, oblanceolate, or elliptic-ovate, base short-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 or, rarely, nearly opposite, spreading, sessile;

blade dark green to yellow-green, speckled with red, not glaucous, obovate to oblanceolate, subterete, 4.8–9 × 2.2–4.2 mm, base spurred, not scarious, apex rounded or obtuse with minute mucronate appendage, (surfaces papillose).

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

branches not recurved, 2-forked;

bracts similar to leaves, smaller.

cymes, 2–9-flowered, or flowers solitary, 1–3-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(–8)-merous;

sepals divergent or suberect, distinct, lanceolate, oblong-lanceolate, or oblanceolate-elliptic, unequal, 4.4–7.2 × 1.2–1.7 mm, apex acute to obtuse, (sometimes papillose);

petals basal 1/3 erect, widely spreading distally, slightly connate basally, white streaked with pink, lanceolate, not carinate, 3.5–10 mm, apex acute with minute mucronate appendage;

filaments white, streaked with red;

anthers dark red;

nectar scales yellow, orange, or pink, stipitate-reniform or subquadrate.

erect in fruit, distinct, brown.

erect in fruit, connate basally, pale brown.

= 32, ca. 128.