1	Subshrub	"Sedum praealtum"
1	"Annual to per"	2
2	"Stems densely glandular-hairy toward base"	"Sedum album"
2	"Stems glabrous, glaucous, or papillate, not glandular-hairy toward base"	3
3	"Leaves generally widest +- below middle, tapered to tip (except <i>Sedum niveum</i>); leaves +- = bracts (except <i>Sedum lanceolatum</i>)"	4
3	"Leaves generally widest above middle, tapered to base; leaves > bracts"	8
4	"Petals white, pink-streaked, fused > 1 mm; flowers 1--9; fruit erect"	"Sedum niveum"
4	"Petals yellow or white, +- free; flowers 1--44; fruit erect to spreading"	5
5	"Leaves red-scarious in age"	6
5	"Leaves staying green, fleshy"	7
6	"Annual, biennial; leaf tip obtuse to acute; fruit 3--5 mm, spreading to strong-reflexed; stems without plantlets in place of distal leaves, flowers"	"Sedum radiatum"
6	"Perennial herb; leaf tip long-tapered; fruit 5--8 mm, +- erect; stems often with plantlets in place of distal leaves, flowers"	"Sedum stenopetalum"
7	"Bracts +- elliptic to round, surfaces convex; fruit spreading"	"Sedum divergens"
7	"Bracts lanceolate, surfaces +- flat; fruit +- erect, tips outcurved"	"Sedum lanceolatum"
8	"Inflorescence generally +- 3-branched; petals long-acuminate and fruits erect, or petals acute and fruits generally outcurved"	9
8	"Inflorescence generally > 3-branched; petals obtuse to acute and fruits erect"	10
9	"Petals long-acuminate, 8--13 mm, fused < 3 mm; fruit erect; outer rosette leaves = inner"	"Sedum oreganum"
9	"Petals acute, (5)7--8(10) mm, +- free; fruit generally outcurved; outer rosette leaves >> inner"	"Sedum spathulifolium"
10	"Rosette open, internodes visible, some 3--5 mm"	11
10	"Rosette dense, internodes not visible, < 3 mm"	12
11	"Petals rounded to obtuse; anthers yellow (red-brown); inflorescence 2--8 cm, 13--40(72)-flowered"	"Sedum obtusatum subsp. retusum"
11	"Petals acute; anthers yellow or red-brown; inflorescence 1--14 cm, (12)20--70(120)-flowered"	"Sedum oregonense"
12	"Inflorescence strongly white-glaucous; rosette leaves 11--60 mm, generally > 3.5 &times; longer than wide; anthers generally yellow (turning red-brown)"	13
12	"Inflorescence not or +- glaucous; rosette leaves 6--50 mm, generally < 3 &times; longer than wide (or anthers red-purple); anthers yellow to purple-black"	14
13	"Bracts 14--30 mm; rosettes 3--9 cm diam, leaves 14--60 mm, 7--16 mm wide, widest 6--9 mm below tip; petals +- pale yellow; fruit free"	"Sedum albomarginatum"
13	"Bracts 7--13 mm; rosettes 1--6 cm diam, leaves 11--35 mm, 3--9 mm wide, widest 2--3 mm below tip; petals +- cream; fruit fused at base"	"Sedum oblanceolatum"
14	"Petals dark pink to dark red; bract surfaces convex, base cordate, not clasping"	"Sedum laxum subsp. eastwoodiae"
14	"Petals white to yellow or pink; bract surfaces flat, base obtuse to truncate, not clasping, or cordate, clasping"	15
15	"Petals white to pink, or pale yellow"	16
15	"Petals cream or deep yellow, pink-tinged or not, red-veined or not (pale yellow or pink-white in <i>Sedum obtusatum</i> subsp. <i>boreale</i>)"	18
16	"Bract length >> width; plant 7--40 cm; rosette leaves 10--50 mm"	"Sedum laxum subsp. laxum"
16	"Bract length < to > width; plant 9--24 cm; rosette leaves 9--32 mm"	17
17	"Petals pale yellow; bract base often truncate, not clasping; sepals < 1/3 petals"	"Sedum laxum subsp. flavidum"
17	"Petals white to pink; bract base cordate, clasping; sepals 1/3--2/3 petals"	"Sedum laxum subsp. heckneri"
18	"Petals cream, not +- pink- or red-tinged or -veined; sepals 3.5--6 mm, acute to long-tapered"	"Sedum obtusatum subsp. paradisum"
18	"Petals yellow, pale yellow, or white, +- pink- or red-tinged or -veined at least in age; sepals 1.8--5 mm, obtuse to acute"	19
19	"Bracts 8--15 mm; petals pale yellow or white, generally pink-tinged or -veined; inflorescence 15--38(60)-flowered"	"Sedum obtusatum subsp. boreale"
19	"Bracts generally 4--9(13) mm; petals yellow, +- red-tinged or -veined in age; inflorescence 8--26(46)-flowered"	"Sedum obtusatum subsp. obtusatum"