Flora of North America species comparison

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

rootstocks, erect, rarely branched, (smooth or papillose), bearing erect shoots and axillary rosettes.

erect, simple or branched, 3–18 cm;

leaf blades elliptic-lanceolate, base short-spurred;

offsets not formed.

erect, simple, 5–10 cm, (sometimes papillose distally);

leaf blades oblanceolate-elliptic, oblanceolate-oblong, or spatulate, base short-spurred;

offsets not formed.

(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, spreading to ascending, sessile;

blade green or yellow-green, sometimes glaucous, obovate or oblong-spatulate, laminar, 9.5–15 × 1.5–3.5 mm, base spurred, not scarious, apex rounded to obtuse, (surfaces papillose).

cymes, 5–25-flowered, (1–)3(–6)-branched;

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

bracts similar to leaves.

3-parted cymes, (4–)10–27-flowered, 1–3-branched, sometimes monochasially;

branches ± arched, spreading, or sometimes recurved, sometimes forked;

bracts similar to leaves, smaller.

absent or to 3 mm.

1–3.5 mm.

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 to spreading, distinct basally, yellow-green to yellow, lanceolate-linear or clavate-oblong, unequal, 4.5–12 × 1.4–2.6 mm, apex acute or obtuse, (papillose);

petals erect, curving upward distally, distinct, rarely slightly connate, white streaked with pink, lanceolate-elliptic, not carinate, 5–8 mm, apex obtuse, with minute mucronate appendage;

filaments white;

anthers purple or brown;

nectar scales yellow or creamy white, square.

erect in fruit, basally connate, brown.

erect in fruit, distinct, pale brown.

= 16.

= 28, 30, 32, (34), 58, 64.