The Jepson Herbarium
		University of California, Berkeley

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Annual to shrub; cotyledons generally petioled, withering early.
Stem: generally erect.
Leaf: palmately compound [or not], generally cauline; stipules fused to petiole; leaflets 3–17, generally oblanceolate, entire.
Inflorescence: raceme, flowers spiraled or whorled, occasionally also in lower leaf axils; bracts generally deciduous.
Flower: calyx 2-lipped, lobes entire or toothed, generally appendaged between; corolla blue, purple, white, or yellow, banner glabrous to densely hairy, centrally grooved, sides reflexed, wing tips ± fused, keel generally beaked; stamens 10, filaments fused, 5 long with short anthers, 5 short with long anthers; style brush-like.
Fruit: dehiscent, generally oblong.
Seed: 2–12, generally smooth.
± 220 species: especially w North America, w South America to e US, also tropical South America, Medit to w Asia, e tropical Africa.; some cultivated for fodder, green manure, edible seed, ornamental. (Latin: wolf, from mistaken idea that plants rob soil of nutrients) Some (e.g., Lupinus arboreus, Lupinus latifolius, Lupinus leucophyllus) have alkaloids (especially in seeds, fruits, young herbage) TOXIC to livestock (especially sheep). [Barneby 1989 Intermountain Flora 3(B):237–267; Isely 1998 Native and Naturalized Leguminosae (Fabaceae) US. M.L. Bean Museum, Brigham Young University] Infl length excludes peduncle; some CA species naturalized in e North America, South America, Australia, s Africa. {hort link}

Key to Lupinus

1. Annual, rarely living > 1 growing season

2. Cotyledons sessile, persistent at plant base, disk- or cup-like, or deciduous, leaving circular scar; fruit generally ovoid; seeds generally 2, generally tubercled or wrinkled (fruit oblong; seeds 2–6 in Lupinus odoratus)

3. Fls distinctly whorled; bracts reflexed; upper keel margins ciliate near claw

4. St generally not clearly hollow; lower keel margins as densely ciliate as upper; leaflets adaxially generally hairy; seed dark brown, tubercled

5. Plant 30–75 cm; petals generally pale yellow (± pink or bright blue); NW, CaRF, e SnFrB and n SCoRI (Diablo Range), w WTR ..... L. luteolus

5' Plant 100–200 cm; petals ± blue, in age ± yellow; NCoRO (Covelo, Mendocino Co.) ..... L. milo-bakeri

4' St clearly hollow at least below; lower keel margins glabrous or less ciliate than upper; leaflets adaxially glabrous; seed generally mottled, wrinkled or smooth ..... L. microcarpus

6. Wings widely elliptic, not withering, in age translucent; lower keel margins ciliate near claw; calyx appendages 1–2 mm ..... var. horizontalis

6' Wings linear to oblanceolate, withering, in age not translucent; lower keel margins occasionally sparsely ciliate near claw; calyx appendages generally 0

7. Bracts short-appressed- to long-spreading-hairy; fruit ± spreading, generally on 1 side of axis ..... var. densiflorus

7' Bracts long-shaggy-hairy; fruit generally ± erect, generally on > 1 side of axis ..... var. microcarpus

3' Fls not distinctly whorled; bracts not reflexed; upper keel margins glabrous

8. Lvs basal; herbage sparsely hairy in youth, generally glabrous at flower; pedicel 3–5 mm — GB, D ..... L. odoratus

8' Lvs cauline, often crowded near base; herbage sparsely hairy to canescent; pedicel generally < 3 mm

9. Plant 1–2(3) cm; inflorescences (1)2-flowered; free blades of stipules < 1 mm; leaflets 2–7 mm — MP ..... L. uncialis

9' Plant 3–20 cm; inflorescences 3–many flowered; free blades of stipules > 1 mm; leaflets generally > 7 mm

10. Herbage canescent; upper calyx lip ± = lower; upper suture of fruit generally wavy and densely stiff-ciliate; fruit sides with hairs short, inflated, when dry scale-like — D ..... L. shockleyi

10' Herbage sparsely to densely ± long-hairy; upper calyx lip < lower; upper suture of fruit not obviously wavy and densely stiff-ciliate; fruit sides with hairs long, not inflated.

11. Peduncle 0–1 cm; inflorescence < leaves; fruit oblong, narrowed between seeds — GB (Modoc, Inyo cos.) ..... L. pusillus var. intermontanus

11' Peduncle 2–5(10) cm; inflorescence > leaves; fruit ovate, not narrowed between seeds

12. Infl 1–2.5 cm; pedicels 0.5–1.5 mm; calyx appendages present; seed smooth; s MP, W&I, e DMoj ..... L. brevicaulis

12' Infl 3–10 cm; pedicels 2–3 mm; calyx appendages 0; seed wrinkled; W&I, e DMoj ..... L. flavoculatus

2' Cotyledons petioled, generally withering, generally deciduous, not leaving circular scar; fruit oblong; seeds generally > 2, smooth

13. Lower and often upper margins of keel ciliate near claw, both glabrous near tip

14. Fls whorled — petals generally blue-purple (white, pink, lavender); c&s NW, GV, CW, SW ..... L. succulentus (2)

14' Fls spiralled (if appearing ± whorled, pedicel bases clearly spiralled, not whorled)

15. Infl < peduncle — banner yellow, wings generally pink (± white), keel white; SN, n SCoRO (Monterey Co.), SnGb, SnBr ..... L. stiversii

15' Infl generally > peduncle

16. Petals gold-yellow or white; pedicel recurving ..... L. citrinus

17. Petals gold-yellow, drying translucent, ± purple; c SNF (Fresno, Madera cos.) ..... var. citrinus

17' Petals white, pink- or lavender-tinged or not, banner occasionally drying translucent, yellow; c SNF (Mariposa Co.) ..... var. deflexus

16' Petals blue or dark pink to magenta; pedicel not recurving

18. Herbage short-appressed- and stiff-spreading-stinging-hairy; leaflets 10–20 mm wide — c&s CW (SnFrB, SCoRO, possibly others), SW ..... L. hirsutissimus

18' Herbage not stiff-spreading-stinging-hairy; leaflets generally < 10 mm wide

19. Petiole flat, leaflet-like; keel tip stout, blunt, upper margins ciliate middle to claw — c&s CW, SW ..... L. truncatus

19' Petiole not flat, not leaflet-like; keel tip slender, pointed, upper margins generally glabrous

20. Pedicel 5–9 mm; bract 10–15 mm, >> flower bud — SNF, Teh, deltaic GV, SCoRO ..... L. benthamii

20' Pedicel < 5 mm; bract 3–8 mm, < to ± > flower bud

21. Lflets 5–10 mm wide, adaxially glabrous; petals dark pink to magenta; e DMoj, DSon ..... L. arizonicus

21' Lflets 2–4 mm wide, adaxially hairy at least near margins; petals generally blue (± pink); s SCoR, SW, DMoj ..... L. sparsiflorus

13' Lower, upper keel margins glabrous or upper ciliate only near tip

22. Fls spiralled; bracts generally persistent; upper keel margins generally glabrous

23. Plant with central peduncle erect, lateral often decumbent; open or disturbed areas, burns, s SN, c&s CW, SW, D ..... L. concinnus

23' Plant with peduncles decumbent; stable dunes, s CCo (Nipomo Dunes, sw San Luis Obispo Co.) ..... L. nipomensis

22' Fls whorled at some or all nodes; bracts deciduous; upper keel margins generally ciliate near tip

24. Banner longer than wide; pedicel generally < 3 mm

25. Fr generally 3–6 mm wide; keel generally ciliate on upper margins near tip; abundant, < 1600 m, CA-FP, DMoj ..... L. bicolor

25' Fr 6–9 mm wide; keel glabrous; uncommon, < 600 m, NCoRO, CaRF, SNF, SnFrB, SCoRO ..... L. pachylobus

24' Banner as wide as or wider than long; pedicel generally > 3 mm

26. Upper keel margins with (occasionally inconspicuous) tooth near middle — NCo, NCoR, CCo, SnFrB ..... L. affinis

26' Upper keel margins without tooth

27. Fr 4–7 mm wide — < 1300 m ..... L. nanus

27' Fr 8–10 mm wide

28. Pedicel 4–5 mm; herbage sparsely hairy; ChI (San Clemente Island) ..... L. guadalupensis

28' Pedicel 6–8 mm; herbage densely hairy; c SNF (Mariposa, Tuolumne cos.) ..... L. spectabilis

1' Perennial to shrub

29. Upper keel margin ciliate from claw to middle, glabrous from middle to tip

30. Plant fleshy; inflorescence 9–15 cm; open or disturbed areas; fruit 35–50 mm ..... L. succulentus (2)

30' Plant not fleshy; inflorescence 16–60 cm; open to shady, moist areas; fruit 20–45 mm ..... L. latifolius

31. Fl 13–18 mm

32. St densely hairy; SnFrB ..... var. dudleyi

32' St subglabrous to sparsely strigose; c SNH, s SN, SW ..... var. parishii

31' Fl 8–14 mm

33. Fl 8–10 mm

34. St glabrous to strigose; MP ..... var. barbatus

34' St strigose; KR, CaR, MP ..... var. viridifolius

33' Fl 10–14 mm

35. Wings covering most of keel; plant 4–24 dm; SN, SNE ..... var. columbianus

35' Wings not covering most of keel; plant 3–12 dm; NW, CW, SW ..... var. latifolius

29' Upper keel margin glabrous or variously ciliate, but not as at 29.

36. Calyx with spur 1–3 mm

37. Wings with dense patch of hair outside near tip; leaf green, strigose; CaRH, SNH, SnGb, GB ..... L. arbustus

37' Wings glabrous; leaf silver-silky; c SNH, GB ..... L. argenteus var. heteranthus

36' Calyx with bulge or spur 0–1 mm

38. Banner back generally hairy (best seen in buds)

39. Upper keel margin ± glabrous

40. St prostrate to decumbent, generally < 4 dm ..... L. albifrons var. collinus (3)

40' St erect, generally > 4 dm

41. Shrub — coastal strand, dunes ..... L. chamissonis

41' Perennial

42. Lf green

43. Petals pale yellow to orange-yellow; CaRH, n&c SNH, GB ..... L. angustiflorus

43' Petals white to purple; n SNH ..... L. apertus

42' Lf silver- to white-hairy

44. Petals generally yellow; n SNH (Plumas Co.) ..... L. dalesiae

44' Petals cream-yellow to -white, pale yellow, lavender, or blue; s SNH, TR, SNE;

45. Petals lavender to blue; 1500–3000 m; s SNH, TR ..... L. elatus (2)

45' Petals cream to pale yellow; generally > 2500 m; generally c SNH (n Inyo Co.) ..... L. padre-crowleyi

39' Upper keel margin ciliate

46. Subshrub or shrub

47. Keel generally lobed near base; flower 9–18 mm; s SNH, Teh, SW, SNE, D ..... L. excubitus

48. Shrub, generally > 7 dm

49. Fl 9–13 mm; leaf silver-hairy; DMoj, adjacent s SNH, SNE ..... var. excubitus

49' Fl 14–18 mm; leaf green-hairy; SnGb, SnBr, PR ..... var. hallii

48' Subshrub, generally < 7 dm

50. Infl 14–40 cm; Teh, SnGb, SnBr ..... var. austromontanus (2)

50' Infl 3–14 cm; SnGb, SnBr, DSon

51. Petiole < 12 cm; SnGb, SnBr ..... var. johnstonii

51' Petiole generally > 12 cm; sw DSon ..... var. medius

47' Keel generally unlobed near base; flower 9–16 mm; CA-FP ..... L. albifrons

52. Subshrub, generally < 5 dm, base, some lower branches woody

53. Lf woolly to shaggy-hairy; SCoRO (Santa Lucia Range) ..... var. abramsii (2)

53' Lf appressed-hairy, not woolly or shaggy-hairy; NW, SNF, CW ..... var. collinus (3)

52' Shrub, generally > 5 dm, woody ± throughout

54. Lf woolly to shaggy-hairy; SCoRO (Santa Lucia Range) ..... var. abramsii (2)

54' Lf hairy but not woolly or shaggy-hairy; NCoR, SNF, CW, SCo, n ChI

55. Bract 4–8 mm; NCoR, SNF, CW, SCo ..... var. albifrons

55' Bract 10–24 mm; CCo, nw SnFrB, n ChI ..... var. douglasii

46' Perennial

56. Lflet 10–30 mm at widest point

57. Petals yellow — SnGb ..... L. peirsonii (2)

57' Petals pink to ± purple or blue (or pale yellow)

58. Peduncle 13–20 cm; leaf long-spreading-hairy; petals light blue, pink, or straw (often drying pale yellow); SCoRO (Santa Lucia Range) ..... L. cervinus (2)

58' Peduncle 8–15 cm; leaf short-appressed-hairy; petals purple to violet; s NCoRI (Napa, Lake, Sonoma cos.) ..... L. sericatus (2)

56' Lflet generally < 10 mm at widest point

59. Plant < 1 dm

60. Fls in many crowded whorls; 2000–3500 m; SNH, SnBr, SNE ..... L. breweri var. grandiflorus

60' Fls in few spaced whorls; 1500–3000 m; e KR (Mount Eddy, Siskiyou Co.), NCoRO (King Range, sw Humboldt Co.) ..... L. lapidicola (2)

59' Plant > 1 dm

61. Calyx generally bulged or spurred < 1 mm; CaR, n SNH, GB, DMtns ..... L. argenteus (in part)

62. Lvs basal and cauline; petioles (5)7–15 cm — c SNH, SNE ..... var. montigenus

62' Lvs cauline; petioles 1–10 cm

63. St hairs appressed; leaf generally appearing green; flower (8)10–12 mm; CaR, n SNH, GB, DMtns ..... var. argenteus

63' St hairs spreading; leaf gray to silver; flower 8–10 mm; CaRH, SNH, Wrn, SNE ..... var. palmeri

61' Calyx not bulged or spurred

64. Lf hairs appressed, occasionally sparse

65. Bracts deciduous; leaflets 20–50 mm, silver-silky; NW, CaR, n SNH ..... L. obtusilobus

65' Bracts persistent; leaflets 30–80(130) mm, green, hairy; SNE (Big Pine Creek, Inyo Co.) ..... L. pratensis var. eriostachyus

64' Lf hairs ± spreading, dense

66. Fl generally 12–15 mm; plant 2–3.5 dm; stem prostrate to matted — SN ..... L. grayi (2)

66' Fl generally 10–13 mm; plant 3–9 dm; stem erect

67. Petals lavender to purple, often turning brown; banner back densely hairy; KR, CaRH, MP ..... L. leucophyllus

67' Petals ± blue to purple; banner back glabrous to ± hairy; s SCoRO (San Luis Obispo Co.) ..... L. ludovicianus (2)

38' Banner back ± glabrous

68. Subshrub or shrub

69. Shrub, generally 5–20 dm; woody stems erect

70. Infl 10–30 cm; petals generally yellow (lilac to purple, especially n of c NCo); NCo, CCo, SnFrB, SCo, ChI ..... L. arboreus

70' Infl 20–45 cm; petals violet to blue; SW ..... L. longifolius

69' Subshrub, < 5 dm; woody stems prostrate to decumbent

71. Fl 14–18 mm — Teh, SnGb, SnBr ..... L. excubitus var. austromontanus (2)

71' Fl 10–16 mm

72. Keel ± unlobed near base — flower 10–15 mm; NW, SNF, CW ..... L. albifrons var. collinus (3)

72' Keel ± lobed near base

73. Fl 10–13 mm; petals purple except banner spot ± white; roots generally yellow; petioles generally < 2 × leaflets, 2–6 cm; n&c NCo, CCo (Point Reyes) ..... L. littoralis (2)

73' Fl 11–16 mm; petals white, yellow, rose, or purple, often on 1 plant; roots not yellow; petioles generally 2 × leaflets, 4–10 cm; NCo, n&c CCo ..... L. variicolor (2)

68' Perennial (rarely woody at base)

74. Lf adaxially glabrous to sparsely hairy, green (except Lupinus elmeri)

75. Upper keel margin ciliate (occasionally sparsely so in Lupinus onustus)

76. Plant 3.5–10 dm; leaves cauline — NCo ..... L. rivularis

76' Plant < 3.5 dm; leaves generally basal or cauline, clustered near base

77. Fl 8–11 mm, bract 3–4 mm; leaf abaxially silky-hairy; KR, CaRH, n SNH ..... L. onustus

77' Fl 12–18 mm, bract 4–7 mm; leaf abaxially long-stiff-hairy; MP ..... L. saxosus

75' Upper keel margin generally glabrous (occasionally a few hairs)

78. Petals ± yellow — NW, CaR

79. Bract 2–7 mm; plant 4–6 dm; petals bright yellow to orange-yellow; KR, CaR ..... L. croceus (2)

79' Bract 7–14 mm; plant 6–9 dm; petals pale yellow; nw NCoRH (South Fork Mtn, Humboldt, Trinity cos.) ..... L. elmeri

78' Petals not yellow

80. St slender; leaves cauline; leaflets 10–40 mm; dry areas — KR ..... L. tracyi

80' St stout; leaves basal and cauline; leaflets 40–150 mm; moist to wet areas ..... L. polyphyllus

81. Lflet adaxially puberulent to minutely rough-hairy, appearing ± glabrous; KR, NCoRH, CaR ..... var. pallidipes (2)

81' Lflet adaxially glabrous; CA-FP, GB

82. Lflets 5–11; KR, CaR, SNH, SnGb, SnBr, SnJt, WTR, GB ..... var. burkei

82' Lflets 9–17; NW, CW (except SCoRI) ..... var. polyphyllus

74' Lf adaxially hairy, green-gray to silver

83. Infl generally dense, bracts generally persistent (except Lupinus constancei)

84. Infl generally < leaves; plant matted — flowers in 2–3 whorls; W&I (White Mtns) ..... L. lepidus var. utahensis

84' Infl generally > leaves; plant matted or not

85. Lvs cauline, appearing ± basal

86. Bracts deciduous; petals pink; serpentine barrens — ne NCoRO (Lassics Range, se Humboldt, sw Trinity cos.) ..... L. constancei (3)

86' Bracts persistent; petals pink, violet, or blue; montane to alpine sites ..... L. lepidus (in part) (2)

87. Infl ± head-like, 2–8 cm, generally < some leaves; plant < 1 dm; 2000–3500 m ..... var. lobbii

87' Infl elongate, 4.5–11 cm, > leaves; plant 1.2–3.5 dm; 1000–2500 m ..... var. sellulus

85' Lvs cauline, ± along stem

88. Plant ± prostrate, matted; petals pink — ne NCoRO (Lassics Range, se Humboldt, sw Trinity cos.) ..... L. constancei (3)

88' Plant generally erect, generally not matted; petals blue or violet (occasionally pink)

89. Largest leaflets > 40 mm

90. Lvs cauline, strigose to shaggy-hairy, hairs > 1 mm; inflorescence open; petals light blue; c&s SNH ..... L. covillei (2)

90' Lvs basal and cauline, strigose, hairs < 1 mm; inflorescence dense; petals violet to dark blue; c&s SNH, SNE ..... L. pratensis var. pratensis

89' Largest leaflets <= 40 mm ..... L. lepidus (in part) (2)

91. Infl dense, 5–30 cm, whorls > 7, ± crowded; leaves cauline — meadows, vernally moist areas; CaRH, SNH, WTR, SnBr, GB, DMtns ..... var. confertus

91' Infl generally open, 2–12 cm, whorls 3–7, ± well spaced; leaves, or at least some, basal

92. Lflets generally 10–30 mm; flower 9–11 mm; 2500–3000 m, s SNH (Kaweah River, Tulare, Fresno cos.) ..... var. culbertsonii

92' Lflets generally 5–15(23) mm; flower generally 7–9(12) mm; 3000–4000 m, c&s SNH, SNE ..... var. ramosus

83' Infl ± open, bracts generally ± deciduous (except Lupinus covillei, Lupinus gracilentus)

93. Upper keel margin generally glabrous

94. Plant < 2 dm; flower 4–11 mm; keel ± straight

95. Petioles (2)3–6(8) cm; plant tufted; stipule 6–11 mm; pedicel (2)4–5 mm; pumice gravel flats — SNE (Mono Co.) ..... L. duranii

95' Petioles 1–3(4) cm; plant matted or tufted; stipule 2–5 mm; pedicel 1–3(4) mm; montane ..... L. breweri (in part)

96. Fl 6–9 mm; leaflet 6–20 mm; 1000–4000 m ..... var. breweri

96' Fl 4–7 mm; leaflet 3–5 mm; 2500–4000 m ..... var. bryoides

94' Plant > 2 dm; flower generally > 9 mm; keel generally upcurved

97. Stipules green, some leaf-like; flowers 10–14 mm — SNH ..... L. fulcratus

97' Stipule green to silvery, not leaf-like

98. Petals pale yellow or bright yellow to orange-yellow

99. Fl 9–12 mm; petals pale yellow; NCoR, SnFrB, SN ..... L. adsurgens (2)

99' Fl 12–15 mm; petals bright yellow to orange-yellow; KR, CaR ..... L. croceus (2)

98' Petals ± yellow-white to white, ± blue, lavender, violet, purple, or pink

100. Lvs basal and cauline; moist to wet places — KR, NCoRH, CaR ..... L. polyphyllus var. pallidipes (2)

100' Lvs cauline; dry places

101. Banner narrow, wings narrow, not covering keel tip; KR, NCoRH, CaRH, SNH, WTR ..... L. albicaulis

101' Banner wide, wings wide, covering keel tip

102. Lf green, sparsely to densely hairy

103. Fl 9–12 mm; NW, SNH, WTR, SnBr, SNE ..... L. andersonii

103' Fl 13–16 mm; SnGb, SnBr, PR ..... L. hyacinthinus

102' Lf dull green- or gray-hairy to silver-silky

104. Plant resprouting below ground, rhizomed; generally valleys ..... L. formosus

105. Fl 10–14 mm; stem 3–4 mm diam ..... var. formosus

105' Fl 16–18 mm; stem 5–7 mm diam ..... var. robustus

104' Plant resprouting above ground, not rhizomed; mtns

106. Petals white (banner spot turning tawny); seeds 7–11 mm — NCoRH (Anthony Peak, Mendocino Co.) ..... L. antoninus

106' Petals not white; seeds 4–6 mm

107. Lflets widest above middle, appressed-hairy to ± silky; petals pale yellow to lavender or violet; NCoR, SN, SnFrB ..... L. adsurgens (2)

107' Lflets widest below middle, densely silver-silky; petals lavender to blue; s SNH, TR ..... L. elatus (2)

93' Upper keel margin ciliate

108. Plant ± prostrate to decumbent, generally < 3 dm

109. Petals pink; ne NCoRO (Lassics Range, se Humboldt, sw Trinity cos.) ..... L. constancei (3)

109' Petals purple, ± violet, lavender, rose, light blue, yellow, or white; KR, NCo, NCoRO, SN, CCo, SNE

110. Lvs generally basal (if cauline, clustered near base); KR, NCoRO, SN, SNE

111. Infl 10–16 cm; flower 10–16 mm; SN ..... L. grayi (2)

111' Infl 2–7 cm; flower 9–12 mm; e KR (Mount Eddy, Siskiyou Co.), NCoRO (King Range, sw Humboldt Co.) ..... L. lapidicola (2)

110' Lvs cauline; NCo, CCo

112. Lflets 3–5; stem weak — s NCo (Sonoma Co.), n&c CCo (Marin, Monterey cos.) ..... L. tidestromii

112' Lflets 5–9; stem not weak

113. Fl 10–13 mm; petals purple except banner spot ± white; roots yellow; petioles generally < 2 × leaflets, 2–6 cm; n&c NCo, CCo (Point Reyes) ..... L. littoralis (2)

113' Fl 11–16 mm; petals white, yellow, rose, or purple, often on 1 plant; roots not yellow; petioles generally 2 × leaflets, 4–10 cm; NCo, n&c CCo ..... L. variicolor (2)

108' Plant generally erect, generally > 2 dm

114. Lf densely woolly

115. St hairs < 1 mm, not sharp, not stiff; petiole 5–12 cm; flower 10–15 mm; s SCoRO (San Luis Obispo Co.) ..... L. ludovicianus (2)

115' St hairs sometimes 1–3 mm, sharp, stiff; petiole 6–30 cm; flower 10–18 mm; se SNH, SNE, DMoj ..... L. magnificus

116. Fl 10–13 mm ..... var. glarecola

116' Fl (13)16–18 mm ..... var. magnificus

114' Lf occasionally densely hairy but not woolly

117. Lvs clustered near base

118. Petals yellow; SnGb ..... L. peirsonii (2)

118' Petals not yellow, occasionally pale yellow or drying so; NCoRI, SCoRO

119. Peduncle 13–20 cm; petals light blue, pink, or pale yellow (often drying pale yellow); SCoRO (Santa Lucia Range) ..... L. cervinus (2)

119' Peduncle 8–15 cm; petals purple to violet; s NCoRI (Napa, Lake, Sonoma cos.) ..... L. sericatus (2)

117' Lvs clustered near base or not, some along stem

120. Fl 5–7(10) mm; n&c SNH, SNE ..... L. argenteus var. meionanthus

120' Fl 8–18 mm; c&s SNH, GB, DMtns

121. Lflets 30–110 mm

122. Plant strigose to shaggy-hairy; leaflet yellow-green, 5–11 mm wide; lower petioles 5–10 cm; bracts 7–15 mm, persistent, conspicuous; c&s SNH ..... L. covillei (2)

122' Plant puberulent to hairy; leaflet green, 2–5 mm wide; lower petioles (3)5–14 cm; bracts 4–10 mm, ± deciduous, inconspicuous; c SNH (Rock Creek, Inyo, Mono cos., to Yosemite National Park) ..... L. gracilentus

121' Lflets 15–50 mm

123. Plant 4–7 dm; flower 13–15 mm; ne DMtns (Last Chance Range, Grapevine Mtns, Inyo Co.) ..... L. holmgrenianus

123' Plant 1–4 dm; flower 10–12 mm; GB, DMtns ..... L. nevadensis

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Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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