1	"Calyx generally >= 12 mm; corolla lobes 1/5--1/2 tube; subshrub"	2
1	"Calyx <= 12 mm; corolla lobes > 1/2 tube; annual to shrub"	4
2	"Corolla 15--30 mm, white to cream-yellow or rose-tinged, tube cylindrical, 0.5--2 mm diam at tip, lobes spreading; calyx (10)12--15 mm; anthers < 1 mm"	"Monardella nana"
2	"Corolla 35--45 mm, red-orange to yellow, tube funnel-shaped, 1.5--3 mm diam at tip, lobes ascending; calyx 20--25 mm; anthers 1.2--1.5 mm"	3
3	"Stem sparsely hairy; leaf triangular-ovate, sparsely to densely hairy, ciliate"	"Monardella macrantha subsp. hallii"
3	"Stem glabrous to sparsely hairy; leaf elliptic to ovate, +- glabrous, not ciliate"	"Monardella macrantha subsp. macrantha"
4	"Leaf margin wavy, generally +- entire (occasionally +- serrate)"	5
4	"Leaf margin slightly or not wavy, entire to serrate"	10
5	"Leaf < 10 mm, narrowly ovate to triangular-ovate; subalpine forest; s SNH"	"Monardella beneolens"
5	"Leaf >= 10 mm, linear to (ob)ovate; dunes, openings in coastal scrub and woodland; CCo, SnFrB, s SCoRO"	6
6	"Annual; main stem generally branching below middle"	7
6	"Subshrub to shrub; main stem branching above middle"	8
7	"Plant compact; stem stout, generally highly branched; bracts dark-tipped, dark-veined, conspicuously spreading-hairy, especially along veins; distal-most stem internode spreading-hairy; leaves generally weakly wavy; n CCo (Monterey Co. and n), SnFrB"	"Monardella sinuata subsp. nigrescens"
7	"Plant erect; stem slender, sparingly branched; bracts generally not dark-tipped or dark-veined (occasionally purple), sparsely short-hairy; distal-most stem internode +- glabrous; leaves weakly to strongly wavy; s CCo (San Luis Obispo Co. and s), s SCoRO, extirpated in w SCo"	"Monardella sinuata subsp. sinuata"
8	"Plant prostrate to mounded, moderately to densely hairy; leaves appearing pale green, oblanceolate to (ob)ovate, obtuse, largest 5--15 mm wide; main stem decumbent; lateral and terminal branches erect, short, > 1.5 mm diam; plant of active dunes"	"Monardella undulata subsp. crispa"
8	"Plant +- erect, sparsely to moderately hairy; leaves green, linear to narrowly (ob)lanceolate, acute to obtuse, largest 2--7(8) mm wide; main stem +- erect; lateral and terminal branches ascending, < 1.5 mm diam; plant of +- stabilized to semi-stabilized dunes"	9
9	"Stem, leaves sparsely to moderately hairy; flower cluster 18--30 mm wide; bracts lanceolate to ovate, acute to obtuse-acuminate, generally 5--9 mm wide; lateral, terminal branches generally 1--1.5 mm diam; Santa Barbara Co."	"Monardella undulata subsp. arguelloensis"
9	"Stem, leaves sparsely hairy; flower cluster 10--20 mm wide; bracts lanceolate to narrowly ovate, acuminate, generally 3--5 mm wide; lateral, terminal branches generally < 1 mm diam; San Luis Obispo Co."	"Monardella undulata subsp. undulata"
10	"Annual; main stem 1; flower clusters several to many per main stem, in panicle-like array"	11
10	"Subshrub to shrub; main stem 1--many; flower clusters 1--few (several) per main stem"	20
11	"Bract lateral veins +- perpendicular to midvein, areas between veins transparent to translucent"	12
11	"Bract lateral veins +- parallel to midvein, areas between veins +- opaque, membranous, or scarious"	13
12	"Stem slender; flower cluster 10--15 mm wide; bracts 10--15 mm, narrowly ovate, veins stout; narrow opaque band present beside bract veins; NCoR, SnFrB, SCoRI"	"Monardella douglasii"
12	"Stem stout; flower cluster 20--30 mm wide; bracts 15--30 mm, widely ovate; bract veins slender; all of bract except veins transparent to translucent; n&c SNF"	"Monardella venosa"
13	"Bracts not white; calyx lobes not white; corolla rose or purple (white)"	14
13	"Bracts at least partly white; calyx lobes, lobe tips, or margins white; corolla white"	18
14	"Bracts spreading-hairy, hairs > 1 mm"	"Monardella pringlei"
14	"Bracts appressed-hairy, hairs < 1 mm"	15
15	"Bracts generally broadly ovate, strongly acuminate, not or only sparsely cross-veined, generally purple-tinted; WTR, SCoR, SnFrB"	"Monardella breweri subsp. breweri"
15	"Bracts +- lance-ovate or narrower, acute, weakly to strongly cross-veined, occasionally purple tinted; CaRF, s CaRH, SN, s SCoRO, SW"	16
16	"Terminal flower clusters generally 18--25 mm wide; bracts generally 8--10 per flower cluster, > calyx; calyx generally 6.5--7.5 mm; mid-cauline leaves generally 40--60 mm; flowers generally 15--75 per cluster; plant 9--65 cm"	"Monardella breweri subsp. lanceolata"
16	"Terminal flower clusters generally 5--15 mm wide; bracts generally 5--7 per flower cluster, <= calyx; calyx 6--7 mm; mid-cauline leaves generally 10--30 mm; flowers 3--25 per cluster; plant 9--30 cm"	17
17	"Conical glands abundant on stem; calyx sinuses hairy; s SnGb"	"Monardella breweri subsp. glandulifera"
17	"Conical glands 0 on stem; calyx sinuses generally not hairy; s PR"	"Monardella breweri subsp. microcephala"
18	"Calyx lobe tips awl-like, recurved; bracts white throughout (outermost rarely green-tinted); stamens included"	"Monardella leucocephala"
18	"Calyx lobe tips acute, erect; bracts partly white; stamens slightly exserted"	19
19	"Bracts conspicuously cross-veined between major parallel veins; flower clusters generally 12--25 mm wide, generally closely subtended by leaves, peduncle inconspicuous; main stem 1 or generally branching above middle; SNF, e SnJV (extirpated in n part of range)"	"Monardella candicans"
19	"Bracts not or inconspicuously cross-veined; flower clusters 10--20 mm wide, peduncle 1--3 cm; main stem 1 or generally branching below middle (pls in se SNF generally branching distally); se SN, n TR, nw DMoj"	"Monardella exilis"
20	"Abaxial leaf face +- white to ash-gray, short- to long-hairy, felt-like, or woolly, considerably whiter than adaxial face"	21
20	"Abaxial leaf face +- green, +- gray, silvery, or purple, not considerably whiter than adaxial face"	27
21	"Stem and leaf hairs short, < 0.3 mm, dense, straight; corolla lavender to purple or rose"	22
21	"Stem and leaf hairs generally > 0.5 mm, generally woolly, curved to curled on abaxial leaf face; corolla white to lavender"	23
22	"Flower clusters generally >= 20 mm wide; calyx 8--12 mm; leaves 20--40 mm, green adaxially; corolla lavender to purple; e SnGb"	"Monardella saxicola"
22	"Flower clusters generally <= 20 mm wide; calyx 7--8 mm; leaves 5--20(30) mm, many +- white (pl appearing pale); corolla rose to purple; s NCoRI"	"Monardella viridis"
23	"Branched hairs abundant on stem --- s CCo, s SCoRO (Santa Barbara to s Monterey cos.)"	"Monardella villosa subsp. obispoensis"
23	"Branched hairs 0--few on stem"	24
24	"Leaf ovate to widely triangular-ovate, base generally truncate"	"Monardella villosa subsp. franciscana"
24	"Leaf lance-linear to narrowly ovate, base tapered"	25
25	"Leaf +- flat or margins weakly rolled-under, 7--19 mm wide, narrowly ovate; adaxial leaf face flat; corolla lavender; s SCoRO, WTR"	"Monardella hypoleuca subsp. hypoleuca"
25	"Leaf margins weakly to strongly rolled-under, 3--9(12) mm wide, lance-linear to lanceolate; adaxial leaf face generally convex; corolla white; PR"	26
26	"Hairs on adaxial leaf face sparse to 0, on stem sparse, short, or inconspicuous; nw PR"	"Monardella hypoleuca subsp. intermedia"
26	"Hairs on adaxial leaf face +- dense, on stem long, spreading, conspicuous; sw PR (San Diego Co.)"	"Monardella hypoleuca subsp. lanata"
27	"Plant of DMoj with main inflorescence axis generally 3--several-branched and flower clusters small, 7--20(25) mm wide"	28
27	"Plant of CA-FP or GB, or, if of DMoj, then main inflorescence axis not both branched and with small flower clusters"	31
28	"Stem with conical glands"	"Monardella eremicola"
28	"Stem lacking conical glands"	29
29	"Stem with nonglandular hairs > 0.25 mm and glandular hairs 0.01--0.03 mm"	"Monardella robisonii"
29	"Stem with nonglandular hairs < 0.25 mm, glandular hairs 0"	30
30	"Bracts 8--9 mm; calyx hairs glandular (0.01--0.02 mm) and nonglandular (0.2--0.3 mm); stem 12--40 cm; 1400--1650 m; s-c DMoj (Ord and Rodman mtns)"	"Monardella boydii"
30	"Bracts 10--11 mm; calyx hairs glandular (0.01--0.1 mm) only; stem 30--60 cm; 800--1500 m; e DMtns"	"Monardella mojavensis"
31	"Stem hairs short (< 0.25 mm), very dense, uniform, and recurved"	32
31	"Stem hairs 0 or long and/or short, but not short (< 0.25 mm) and very dense and uniform and recurved"	36
32	"Leaves <= 4 mm wide"	33
32	"Leaves >= 4 mm wide"	34
33	"Bracts 10--15 mm, >= 5 mm wide; PR, sw DMtns (Little San Bernardino Mtns), s DMoj"	"Monardella linoides subsp. linoides"
33	"Bracts 6--11 mm, < 5 mm wide; n&e SnBr"	"Monardella linoides subsp. erecta"
34	"Stem 15--25 cm; bracts elliptic to lanceolate, acuminate; Teh, n WTR"	"Monardella linoides subsp. oblonga"
34	"Stem 20--60 cm; bracts broadly lanceolate to ovate; s SNF, c&s SNH, SNE, n DMoj"	35
35	"Bracts 15--25 mm, 10--14 mm wide; peduncle stout, generally 5--15 cm (from distal-most leaves to flower cluster), 1--1.5 mm diam just proximal to flower cluster; flower cluster 20--30 mm wide; s SNF, s SNH (Kern, Tulare cos.)"	"Monardella linoides subsp. anemonoides"
35	"Bracts 7--15 mm, 6--9 mm wide; peduncle slender, generally 1--7 cm (from distal-most leaves to flower cluster), <= 1 mm diam just proximal to flower cluster; flower clusters 15--26 mm wide; c&s SNH, SNE, n DMoj"	"Monardella linoides subsp. sierrae"
36	"Stem hairs relatively long (> 0.3 mm)"	37
36	"Stem lacking longer hairs (> 0.3 mm)"	43
37	"Leaves thick; distal-stem hairs dense, felt-like"	"Monardella stebbinsii"
37	"Leaves thin; distal-stem hairs sparse to dense, but not felt-like"	38
38	"Plants n of TR"	39
38	"Plants of TR and s"	41
39	"Branched hairs abundant and obvious"	"Monardella villosa subsp. obispoensis"
39	"Branched hairs 0 or inconspicuous"	40
40	"Leaf ovate to widely triangular-ovate, base generally truncate"	"Monardella villosa subsp. franciscana"
40	"Leaf +- narrowly ovate, base tapered to obtuse"	"Monardella villosa subsp. villosa"
41	"Stem 3--15 cm; leaf 5--10 mm; corolla 9--11 mm; SnGb"	"Monardella australis subsp. cinerea"
41	"Stem 10--35 cm; leaf 6--30 mm; corolla 10--13 mm; SnGb, SnBr, and/or SnJt"	42
42	"Bracts lanceolate, exceeding calyx; leaves entire to weakly serrate; generally 1 flower cluster per main stem; SnGb, SnBr, SnJt"	"Monardella australis subsp. australis"
42	"Bracts narrowly lanceolate to lanceolate, exceeded by or at same level as calyx; leaves dentate to serrate (entire); flower clusters 1--several per main stem; e SnGb"	"Monardella australis subsp. jokerstii"
43	"Plants s of TR"	44
43	"Plants n of TR"	45
44	"Leaves >= 4 mm wide; bracts 7--10 mm, 2.5--4 mm wide; flower clusters 10--15 mm wide"	"Monardella stoneana"
44	"Leaves <= 4 mm wide; bracts 10--15 mm, 5--9 mm wide; flower clusters 20--30 mm wide"	"Monardella viminea"
45	"Abaxial leaf hairs minute (< 0.05 mm), remarkably uniform in length and orientation, velvety in appearance"	"Monardella sheltonii"
45	"Abaxial leaf hairs 0 or long and/or short, but not remarkably uniform in length and orientation and velvety in appearance"	46
46	"Stem sparsely hairy (+- glabrous)"	47
46	"Stem +- glabrous"	48
47	"Flower cluster subtended by unmodified leaves or not, if present 8--10 mm, reflexed or not; corolla lavender to (+- red) purple"	"Monardella odoratissima subsp. glauca"
47	"Flower cluster generally subtended by reflexed, unmodified leaves 10--20 mm; corolla generally white (occasionally lavender- to purple-tinged)"	"Monardella odoratissima subsp. pallida"
48	"Hairs on calyx spreading-glandular; stem 30--60 cm"	"Monardella follettii"
48	"Hairs on calyx not spreading-glandular; stem 10--40 cm"	49
49	"Corolla 15--20 mm; calyx 9--12 mm"	"Monardella palmeri"
49	"Corolla 12--16 mm; calyx 6--8 mm"	"Monardella purpurea"