Flora of North America species comparison

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

decumbent, few-branched, (finely papillose), bearing terminal rosettes.

erect, simple or branched, 3–18 cm;

leaf blades elliptic-lanceolate, base short-spurred;

offsets not formed.

erect, simple, 4–20 cm, (papillose);

leaf blades obovate to obovate-spatulate or elliptic, 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).

in whorls of 3, rarely 2 or 4 or decussate, spreading to ascending, shortly petiolate or sessile;

blade pale yellow-green to dark green, not glaucous, obovate to obovate-spatulate or elliptic, laminar, 10–17 × 7–11 mm, base truncately short-spurred, not scarious, apex truncate or rounded, sometimes emarginate, (surfaces finely papillose or crenulate).

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

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

bracts similar to leaves.

cymes, 5–25-flowered, 3-branched, (sometimes papillose);

branches recurved in bud, becoming ± erect at anthesis, not forked;

bracts similar to leaves.

absent or to 3 mm.

absent or to 1 mm, (papillose, almost glandular).

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.

4(–6)-merous;

sepals spreading to erect, connate basally, pale yellow-green, lanceolate-oblong or elliptic, equal, 2.4–5 × 0.8–1.7 mm, apex obtuse, (finely papillose);

petals erect to spreading, distinct, white, elliptic-lanceolate, abaxially carinate, adaxially channeled, 5.4–8.9 mm, apex acute;

filaments white, (flattened basally);

anthers red or purple;

nectar scales yellow or pale yellow, oblong or subquadrate.

erect in fruit, basally connate, brown.

widely divergent in fruit, distinct, brown.

= 16.

= 32.