Flora of North America species comparison

rootstocks, decumbent and ascending, branched, (sometimes papillose), bearing terminal rosettes and above ground shoots.

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

erect, simple or branched, 3–18 cm;

leaf blades elliptic-lanceolate, 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.

(not easily detached), alternate, spreading-erect to erect or ascending, sessile;

blade dull gray-green or bluish green, green, or reddish green, often glaucous, lanceolate, elliptic-lanceolate, or elliptic-ovate, subterete, 4.2–13 × 1.5–3.5 mm, base very short-spurred, base of withered blade at times becoming scarious, apex obtuse or obtusely apiculate, (surfaces papillose).

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, 5–25-flowered, (1–)3(–6)-branched;

branches ascending, spreading to erect, or recurved, forked;

bracts similar to leaves.

cymes, 4–25-flowered, 3-branched;

branches recurved or not, sometimes dichotomously forked;

bracts similar to leaves, smaller.

absent or to 3 mm.

to 1 mm, (sometimes ciliate, papillose).

5-merous;

sepals erect, connate basally, pale green to yellow-green, ovate or lanceolate, equal, 2–5 × 1–2 mm, apex acute or, rarely, obtuse, (often papillose);

petals widely spreading from suberect base, distinct, canary to golden yellow, lanceolate, elliptic-lanceolate, or linear-lanceolate, canaliculate, 6–9.2 mm, apex acute to acuminate with minute mucronate appendage;

filaments yellow;

anthers yellow, sometimes suffused with red;

nectar scales deep yellow to yellow-green, obovately 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.

erect in fruit, basally connate, brown.

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

= 16.

= 16.