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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Key to groups

Family key to Group 20

Group 20: Leaves compound or nearly so; perianth in 2 or more whorls or spirals; petals 4 or more (rarely fewer), free; pistil 1

1. Leaves 2 or more × compound or divided

2. Ovary inferior

3. Fruit dry, splitting into 2 mericarps; inflorescence generally a compound umbel (occasionally simple umbel, head) ..... APIACEAE (2) {G2,6,8,14,21}

3' Fruit a berry; inflorescence a simple or branched cluster of umbels ..... ARALIACEAE (2)

2' Ovary superior

4. Shrub or tree

5. Main axis of leaf bearing many small leaflets or lobes in addition to main leaflets ..... ROSACEAE (Chamaebatia)

5' Main axis of leaf without small leaflets or lobes in addition to main leaflets

6. Leaflets entire; flowers cream to yellow, orange, red, or pink ..... FABACEAE (2) {G12,18,19,22,23,24}

6' Leaflets serrate; flowers white to dark purple ..... MELIACEAE

4' Herb or subshrub

7. Ovary very deeply 4–6-lobed; style arising from a deep indentation in middle of ovary

8. Flowers white or pink; herbage not scented ..... LIMNANTHACEAE (Limnanthes) (3) {G10}

8' Flowers yellow; herbage strongly scented ..... RUTACEAE (Ruta)

7' Ovary unlobed or only shallowly lobed; style or sessile stigma(s) terminal or from shallow depression at tip of ovary

9. Stamens 12–50

10. Inflorescence a raceme ..... RANUNCULACEAE (Actaea, Consolida)

10' Inflorescence a cyme or flowers solitary

11. Petals 5; sepals present in open flower ..... NITRARIACEAE {G22}

11’ Petals 4 or 6 (very rarely 5); sepals deciduous as flower opens, 0 in open flower ..... PAPAVERACEAE (Papaveroideae) {G12,15,22,24}

9' Stamens 2–10

12. Petals 5

13. Flowers solitary on peduncles >= 2 cm ..... VIOLACEAE (2) {G5,15,24}

13' Flowers several to many in umbels or racemes

14. Petals yellow to orange or ± red; leaflets entire; inflorescence a raceme ..... FABACEAE (Hoffmannseggia)

14' Petals pink to purple; leaflets toothed; inflorescence an umbel ..... GERANIACEAE (Erodium) (2)

12' Petals 4 or 6

15. Petals 6; leaves all basal ..... BERBERIDACEAE (Vancouveria) {G16}

15' Petals 4; leaves basal and cauline

16. Petals all equal; flowers radial; inflorescence a bractless raceme ..... BRASSICACEAE (3) {G2,15,24}

16' Petals unequal; flowers bilateral or biradial; inflorescence a bracted raceme or panicle-like cluster ..... PAPAVERACEAE (Fumarioideae)

1' Leaves once compound or divided

17. Petal 1 ..... FABACEAE (Amorpha)

17' Petals 4–6

18. Ovary > 1/2 inferior

19. Shrub or tree; stamens generally 20; fruit a pome ..... ROSACEAE (Sorbus)

19' Herb; stamens 5–10; fruit a capsule, splitting into mericarps, or a berry

20. Inflorescence a raceme or spike (sometimes branched)

21. Plant a freshwater aquatic; leaves all cauline, submersed leaves whorled, pinnately dissected into thread-like segments ..... HALORAGACEAE {G2,6,8,14}

21' Plant terrestrial; leaves basal and cauline, alternate, ± palmately compound ..... SAXIFRAGACEAE (Lithophragma parviflorum)

20' Inflorescence a simple or compound umbel, a cluster of simple umbels, or 1–several heads

22. Styles 2; fruit splitting into 2 mericarps; inflorescence generally a compound umbel (simple umbel, 1 or more heads) ..... APIACEAE (2) {G2,6,8,14,21}

22' Styles 5; fruit a berry; inflorescence of 2–many umbels in simple or branched cluster ..... ARALIACEAE (2)

18' Ovary superior

23. Sepals deciduous as flower opens, 0 in open flower ..... 2PAPAVERACEAE (Papaveroideae) (G12,15,22,24)

23' Sepals present in open flower

24. Stamens many, filaments fused in tube around style; styles 5+ ….. MALVACEAE (G8,19,22)

24' Stamens generally 4–15, or if many, free; styles generally 1–3

25. Flowers strongly bilateral, 1 petal markedly different from others

26. Odd petal uppermost in flower; stamens 10(5), generally all filaments or 9 of them fused, forming a tube around ovary (filaments free); carpel 1; fruit a legume or indehiscent pod ….. FABACEAE (Papilionoideae)

26´ Odd petal lowermost in flower; stamens 5, free but tightly appressed against ovary; carpels 3; fruit a capsule ….. 2 VIOLACEAE (G5,15,24)

25' Flowers ± radial or if bilateral, petals 4 in dissimilar pairs

27. Leaflets or leaf segments 2 or 3

28. Herb or subshrub

29. Petals 4; stamens 6

30. Ovary sessile on receptacle; flowers of raceme not subtended by bracts ..... BRASSICACEAE (3) {G2,15,24}

30' Ovary separated from receptacle by a stalk; flowers of raceme generally subtended by bracts or flowers solitary, axillary ..... CLEOMACEAE

29' Petals 5; stamens 5 or 10

31. Leaflet margins toothed or lobed ..... SAXIFRAGACEAE {G10,21,24}

31' Leaflet margins entire (sometimes apically notched)

32. Leaves alternate or all basal; stamens ± fused, at least at base; ovules or seeds many ..... OXALIDACEAE {G19}

32' Leaves opposite; stamens free; ovules or seeds 1 per chamber ..... ZYGOPHYLLACEAE (2)

28' Tree or well-developed shrub

33. Leaves opposite

34. Leaflets 2, fused at base [leaves deeply 2-lobed], entire, resinous ..... ZYGOPHYLLACEAE (Larrea)

34' Leaflets 3, occasionally ± fused, toothed, not resinous

35. Leaflets coarsely serrate or crenate; stigmas 2, ± sessile; ovary 2-winged; fruit generally splitting at maturity into winged mericarps ..... SAPINDACEAE (Acer glabrum) {G9}

35' Leaflets finely serrate; stigmas and styles 3; ovary wingless; fruit a bladdery, 3-chambered capsule ..... STAPHYLEACEAE

33' Leaves alternate

36. Leaflets gland-dotted; fruit a round, winged achene ..... RUTACEAE (Ptelea) {G9}

36' Leaflets not gland-dotted; fruit a capsule or berry

37. Petals 4; ovary separated from receptacle by a stalk ..... CLEOMACEAE (Peritoma arborea)

37' Petals 5–6; ovary sessile on receptacle

38. Petals 5; leaflets entire to lobed, but not spiny-toothed ..... ANACARDIACEAE (2) {G7,9,23}

38' Petals 6; leaflets spiny-toothed ..... BERBERIDACEAE (Berberis) (2) {G16}

27' Leaflets or leaf segments 4 or more

39. Leaves palmately compound or divided

40. Plant woody

41. Leaves opposite; erect shrub or tree ..... SAPINDACEAE (Aesculus)

41' Leaves alternate; woody vine with tendrils ..... VITACEAE (Parthenocissus)

40' Plant herbaceous

42. Leaflets entire; inflorescence a raceme; ovary separated from receptacle by a stalk ..... CLEOMACEAE (Peritoma)

42' Leaflets or leaf segments toothed; inflorescence (1)2-flowered; ovary sessile on receptacle ..... GERANIACEAE (Geranium) {G24}

39' Leaves pinnately compound or divided

43. Petals 4

44. Ovary entire or ± 2-lobed; inflorescence a generally bractless raceme ..... BRASSICACEAE (3) {G2,15,24}

44' Ovary very deeply 4-lobed; flowers solitary and axillary or inflorescence a leafy-bracted raceme ..... LIMNANTHACEAE (Limnanthes) (3) {G10}

43' Petals 5 or more

45. Shrub or tree (occasionally low-creeping)

46. Petals 6; leaflets spiny-toothed; stems and leaves non-scented ..... BERBERIDACEAE (Berberis) (2) {G16}

46' Petals 5(6); leaflets entire or toothed but not spiny; stems and leaves often strongly scented

47. Ovary divided into 2–5 flattened lobes; fruit a cluster of elongated, winged achenes; leaflets with gland-tipped teeth near base ..... SIMAROUBACEAE (Ailanthus) {G7,9,10}

47' Ovary entire; fruit a drupe or legume; leaflets without gland-tipped teeth

48. Flowers solitary or few; leaflets 2–10 mm, ± entire — small tree of DSon ..... BURSERACEAE {G7,9}

48' Flowers in racemes or panicles, often many; leaflets mostly > 7 mm, often much longer, toothed or entire

49. Corolla << 1 cm diam, white to ± green or pale yellow; fruit a drupe; leaflets often toothed ..... ANACARDIACEAE (2) {G7,9,23}

49' Corolla > 1 cm diam, bright yellow; fruit a legume; leaflets entire ..... FABACEAE (Senna) (2)

45' Herb or subshrub

50. Leaves ± cylindric [leaflets and lobes generally closely overlapping around axis], generally basal; fruit an achene; hypanthium present ..... ROSACEAE (Ivesia)

50' Leaves ± flat, basal and/or cauline; fruit nutlets, mericarps, a capsule, or a legume; hypanthium 0

51. Anther-bearing stamens as many as petals — fruit with long beak, splitting into 5 mericarps ..... GERANIACEAE (Erodium) (2)

51' Anther-bearing stamens 2 × as many as petals (occasionally some anthers much smaller than others)

52. Flowers in racemes or panicles; ovary chamber 1; fruit dehiscent

53. Terminal leaflet 0; fruit a legume ..... FABACEAE (Senna) (2)

53' Terminal leaflet present; fruit a capsule ..... RESEDACEAE

52' Flowers solitary, in pairs, or in a leafy-bracted raceme; ovary chambers generally 5; fruit splitting into mericarps

54. Stipules 0; ovary very deeply 5-lobed; style base surrounded by ovary lobes ..... LIMNANTHACEAE (Limnanthes) (3) {G10}

54' Stipules present; ovary entire or shallowly lobed at time of pollination; style at tip of ovary ..... ZYGOPHYLLACEAE (2)


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