Flora of North America species comparison

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

decumbent, becoming erect or ascending, branched, not bearing true rosettes.

erect, simple or branched, 3–18 cm;

leaf blades elliptic-lanceolate, base short-spurred;

offsets not formed.

erect, usually simple, rarely branched, 6–10 cm;

leaf blades suborbiculate to spatulate-obovate or oblong, base not 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).

opposite and decussate (rarely alternate), spreading, sessile;

blade green or reddish green, not glaucous, suborbiculate to spatulate-obovate or oblong, subterete, ± globular, 4–9 × 4–6 mm, base slightly subcordate, (clasping), not scarious, apex rounded.

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

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

bracts similar to leaves.

terminal cymes, 5–25-flowered, 2–3-branched;

branches recurved to erect, forked or not;

bracts similar to leaves or elliptic to broadly lanceolate, 2–5 mm, base clasping, apex obtuse to acute.

absent or to 3 mm.

0.5–4 mm (sometimes enlarged apically).

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(–7)-merous;

sepals erect, connate basally, green, ovate, equal, 2–3 × 1.5–2 mm, apex obtuse;

petals erect basally, spreading distally, usually distinct, sometimes slightly connate basally, yellow, elliptic-lanceolate, not or only slightly carinate, ca. 6 mm, apex acute or obtuse with mucronate appendage;

filaments yellow;

anthers yellow;

nectar scales yellow, subquadrate.

erect in fruit, basally connate, brown.

widely spreading in fruit, firmly connate basally, red to light reddish brown or straw colored.

= 16.

= 16.