1. Palms

2. Most Widely Cultivated Urban Trees Southern Magnolia (Magnolia grandiflora) Blue Gum (Eucalyptus globulus) Mexican Fan Palm ( Washingtonia robusta)

3. Palms Trunks grow taller not thicker Do not grow annual rings of wood Monocot Most are frost tender All leaves arise from one apical bud Single unbranched stem

4. Feather and Fan Palms

5. Palms Feather Palms-Pinnately divided leaves Lower leaflets with or without spines Fan Palms-palmately divided leaves Petiole margins lined with spiny teeth or petiole margins not armed

6. Feather Palms (pinnately lobed fronds)

7. Jubaea chilensis Chilean Wine Palm

8. Feather Palm Pinnately divided leaves Lower leaflets without spines Trunk larger than 3 feet at maturity

9. Phoenix canariensis Canary Island date palm palm family, Arecaceae Native to Canary Islands Big, heavy trunked, to 60 ft. Hardy to 20 degrees, tolerates seacoast conditions where warm enough Dying in Los Angeles; succumbing to Fusarium wilt, a fungal disease Brought to California by the Mission Fathers

10. Fronds deep green with many leaflets no petiole -- spiky leaflets all the way to base of frond Young fronds very stiff-spiny Phoenix canariensis Canary Island date palm palm family, Arecaceae

11. Young fronds very stiff-spiny!

12. Phoenix dactylifera, Date palm

13. Date Palm Phoenix dactylifera 17 species native to tropical africa and asia 6 of these species cultivated in North America Date Palms grown commercially in California and Arizona

14. Phoenix dactylifera ‘Deglet Noor’, Deglet Noor date palm

15. Phoenix dactylifera, Date palm Palm family, Arecaceae Feather-leaf, leaflets sharp-tipped, pale green and held stiffly on top of palms large and stiff for small gardens; dates formed only on female plant if plant mature and male is present; likes water (desert oases in Middle East); THIS is the palm of Hilltop Drive (P. dactylifera ‘Deglet Noor’)

16. Fan Palms (palmately lobed fronds)

17. Chamaerops humilis Mediterranean fan palm palm family, Arecaceae Clumping palm, to 20 x 20 ft (piranhas run in schools) Survives 0 degrees briefly Use in containers, mass under trees, hedge; takes poor soil and strong winds, regular water

18. Chamaerops humilis, Mediterranean fan palm “piranha teeth”

19. Chamaerops humilis Mediterranean fan palm ID: fan leaves cut at least 2/3 of way to stalk—palmately lobed teeth on frond stalk are long and widely- separated (piranha teeth)

20. Washingtonia robusta, Mexican fan palm palm family, Arecaceae

21. Tall plant, to 100 ft., trunk slim and maybe curved, compact head of foliage, good for large properties, avenues, parkways Hardy to 20 degrees; damaged in the cold winter, but OK if in ground

22. Washingtonia robusta, Mexican fan palm ID: Palmate leaf divided about 1/3 to ½ of way to leaf stalk Leaf stalk heavily toothed, teeth often golden (“shark tooth”)

23. Most widely grown palm tree “ Washingtonia palms are well known for being a large apartment complex for all sorts of vermin from rats and mice, spiders and scorpions and all sorts of birds” Washingtonia palms Washingtonia robusta, Mexican fan palm palm family, Arecaceae