Flora of North America species comparison

rhizomatous, procumbent or creeping, much-branched, bearing terminal rosettes.

rootstocks, horizontal, branched, bearing terminal rosettes.

erect, simple, 3–14 cm;

leaf blades spatulate-oblong or elliptic-oblong, base not spurred;

offsets not formed.

(terminal or axillary), ascending, simple or branched, 2–10(–12) cm;

leaf blades truncately obovate or spatulate, base not spurred;

offsets not formed.

alternate, spreading, petiolate;

blade green, often glaucous or pruinose, spatulate, terete to laminar, 7–19 × 4.5–10 mm, base not spurred, not scarious, apex rounded or truncate, submucronate, (surfaces papillose marginally).

alternate, ascending, sessile;

blade green, blue-green, green suffused with red, or red, margins not white, not pruinose, not glaucous, obovate, spatulate, or oblanceolate, subterete to somewhat flattened, (4–)12–22(–33) × 4–10 mm, base not spurred, not scarious, apex rounded or truncate, obscurely mucronate, retuse, or emarginate.

cymes, ca. 30-flowered, ca. 3-branched;

branches not recurved, forked;

bracts oblong-spatulate or linear, ca. 3 cm, base not spurred.

paniculate cymes, 5–45-flowered, 4–15-branched;

branches not recurved, simple or 1–2-forked;

bracts spatulate to linear-oblong, 3–5 mm, base not spurred;

offsets not formed.

2–8 mm.

2–5 mm.

5-merous;

sepals spreading to erect, connate basally, green or yellow-green, glaucous or pruinose, lanceolate, linear-lanceolate, oblong-ovate, or obovate, equal, ca. 2.5 × 1.5 mm, apex acute or obtuse;

petals widely spreading from short, erect base, distinct or slightly connate basally, yellow, linear to oblanceolate, not carinate, 4.5–9 mm, apex acute;

filaments yellow;

anthers yellow;

nectar scales yellow, reniform or nearly square.

ca. 5-merous;

sepals erect, (loosely appressed to corolla), slightly connate basally, pale green or purplish, glaucous, ovate or lanceolate, (slightly subterete), equal, 1.8–5.3(–6) × 2 mm, apex acute to obtuse;

petals (convolute in bud), erect proximally, connate basally, spreading distally, greenish white or creamy white to yellow or pale orange, or pale orange suffused with pink, oblanceolate-oblong, spatulate or obovate, somewhat carinate, 4–10 mm, apex abruptly mucronate;

filaments white or yellow;

anthers yellow;

nectar scales white, truncately reniform.

divergent in fruit, connate basally, brown.

erect in fruit, distinct, brown.

= 30.

= 30, 60 (in var. retusum).