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Trees of Kern County , California

by Alison M. Sheehey


This list has 127 species/subspecies listed, 80 native species, 22 subspecies, and 26 exotic. Some of the "trees" are more shrub in nature but this was a judgment call, if it is woody and can be pruned into a tree I will consider it a tree for this list.

Distribution information is from Moe/Twisselmann, expert consultation, and personal experience. Common names from Jepson, CalFlora, and Twisselmann. Scientific names names from CalFlora and Moe. Photographs from personal collection.

All photos and information copyright Alison Sheehey. All rights reserved.

NOTE: I am adding photographs and new distribution information all the time. New information, photographs for the page, praise, suggestions, constructive criticism, and corrections always happily accepted, especially new range information.  You will be acknowledged as a reference. My thanks to Dr. Maynard Moe and Eve Laeger for their input.


Scientific name

Common name (s)

Description

Habitat

Location

Kern?

Flora Kern pg #

Kingdom Plantae - Division Coniferophyta - Gymnosperms - Order Coniferales - Family Cupressasceae

Calocedrus decurrens (Torrey) Florin

Incense Cedar

20-50m tall, monoecious, cone 1.9-2.5cm

mixed evergreen forest, yellow pine forest, canyon and slope habitats. 350-2500m

Common in the Greenhorn Range, Sporadic on Kern Plateau, Tehachapi's, and San Emigdio

native

P171 K90

Cupressus arizonica Greene nevadensis (Abrams) Murray

Piute Cypress

5-25m tall, monoecious, cone 1.9-3.2cm

chaparral, oak/pine woodland, pinyon-juniper woodland. 750-1800m

very rare restricted to the Piute and Greenhorn Mtns. A Breckenridge colony was destroyed by fire

native

P171 K91

Juniperus occidentalis Hooker var. australis (Vasek) A. Holmgren

Western Juniper

3.5-9m tall, monoecious, blue juicy berry-like fruit, single trunk

Great Basin plant reaching southern limit in Kern County. Dry exposed rocky slopes

Summit and north slope Owens Peak

native

P172 K91

Juniperus californica Carrire

California Juniper

 

1-4m tall dioecious shrub/tree single to multiple trunks, dry red berry-like fruit

 

dry slopes, flats, pinyon/juniper woodlands

found only in mid to high elevation arid areas of Kern from the Temblors to the eastern Sierra

native

P172 K91

Family Pinaceae - Firs and Pines

Abies concolor (Gordon & Glendinning) Lindley

 

White Fir

<61m tall, rounded to pointed needles, flattish sprays, long u-curved needles, cone 7.6-12.7cm

mixed conifer to red fir forest 900-3100m

all higher elevation mountains of the

county except the Temblors

native

P168 K153

Abies magnifica Murray var. shastensis Lemmon

Shasta Red Fir

<57m tall, 4-sided needles, rounded leaf tips, cone 15.25-20.32cm

upper mixed conifer to subalpine forests 1200-2800m

found only in the Sunday Peak area of the Greenhorn Range. Southernmost colony of this species

native

P168 K153

Pinus contorta Loudon ssp. murrayana (Grev. & Balf) Critchf.

lodgepole pine

 

<34m tall, 2-needle 7.6cm long, cone <5cm, slight

cone prickles

wet meadows, cold mixed

conifer forest

southern limit of range in Kern County, Small colonies found at Pine Flat & Little Cannell Meadow - Kern Plateau

native

P169 K153

Pinus flexilis James

limber pine

< 20m tall, 2.9m wide, cone 4-20cm long, 5-needle, 2.5-5cm long

normally found in Lodgepole, subalpine, bristlecone forests, none of which exist in Kern except a small colony of lodgepole.

Jim Shevock found this tree at Inspiration Point in the Piutes and on Owens Peak

Jim Ouimette of Bakersfield reports a population on Mt. Pinos and Sawmill Mtn.

native

P168 K154

Pinus jeffreyi Greville & Balfour

Jeffrey pine

< 53m tall, 2.3 m wide, cone <26 cm long, 3-needle, shiny medium cone thorns.

yellow pine forest, higher elevation mixed conifer, red fir forest, serpentine outcrops

all Kern County mountains from 450-2600m, except Temblors and desert ranges

native

P168 K153

Pinus lambertiana Douglas

sugar pine

< 70m tall, 3.3m wide, cone 15-63cm long,5-needle 6.4-10.2cm long

mixed conifer forest, yellow pine forest

common in the Greenhorns and on Breckenridge, scarce in the Tehachapi's and Piutes, rare on Owens Peak and the Kern Plateau

native

P168 K154

Pinus monophylla Torrey & Fremont

singleleaf pinyon

<15m tall, <40 cm wide, cone 3-12cm, 1-needle 2-7cm

arid mountain slopes, pinyon/juniper woodland

desert slopes of Piutes, E. Greenhorns, Pinyon/juniper woodland, desert slopes of Piutes, E. Greenhorn, S. Kern Plateau, head of Tejon Canyon

native

P169 K153

Pinus ponderosa Douglas

ponderosa pine (yellow pine)

<68m tall, 2.2m wide, cone 9-18cm, 3-needle 12-26cm long

yellow pine forest to 1850m

common to the Greenhorns and Breckenridge, uncommon relict colonies Tehachapi's and Mt. Pinos regions

native

P170 K153

Pinus sabiniana Douglas

gray pine, foothill pine

<38m tall, <2m wide, 3-needle 9-38cm long, cone 10-28cm

foothill woodland, pine/oak woodland, pinyon/juniper woodland

all foothills woodlands east of San Emigdio Range.

native

P170 K153

Pseudotsuga macrocarpa (Vasey) Mayr.

bigcone Douglas-fir

<44m tall, <2.1m wide fir life needle 2-4.5cm long, 9-20cm cone

Jeffrey pine forest

Mt. Pinos region, Mil Potreros, Tecuya Ridge w. of Ft. Tejon

native

P170 K154

Division  MAGNOLIOPHYTA - angiosperms, flowering plants Class MAGNOLIOPSIDA - Dicots

Subclass MAGNOLIIDAE Order LAURALES Family LAURACEAE

Umbellularia californica (Hook. & Arn.) Nuttall

California bay

<45m tall, evergreen, leaf 3-10cm long 1.5-3cm wide

Canyons chaparral, valleys, Douglas oak woodland

W. slope Breckenridge, Kern Canyon, Rattlesnake Canyon Greenhorn Mtns.

native

P239 K129

Subclass HAMAMELIDAE Order HAMAMELIDALES Family  PLANTANACEAE

Platanus racemosa Nuttall

California sycamore

10-35m tall, <1m wide, leaf lobes 3-5

<2000m, below yellow pine forest along streams

Mtn. streams, Kern River to Bakersfield

native

P255 K154

Platanus racemosa var. wrightii (S. Watson) L. Benson

Arizona sycamore

deciduous

Order URTICALES Family ULMACEAE

Celtis reticulata Torrey

net-leaf hackberry

1-8m tall, deciduous

500-1700m, uncommon canyons, seeps, washes

Caliente Canyon 3 mi above Caliente, Democrat Hot Springs

native

P214 K217

Ulmus minor Miller

English elm

<10m tall, deciduous

waste places, canyons

Wasco, Bakersfield

exotic

P214 K217

Ulmus parvifolia Jacquin

Chinese elm

<8m tall, deciduous

waste places, washes, ranchlands

occasional Bakersfield

exotic

P214 K217

Ulmus pumila L.

Siberian elm

<10m tall, deciduous

waste places, roadsides, washes

Kernville, Mojave, Rosamond

exotic

P214 K217

Family MORACEAE

Ficus carica L.

edible fig, white fig

shrub/ tree, <10m tall, deciduous

moist disturbed places, old habitations <800m, springs canyons

Kern River, Buena Vista Valley, Oiler Canyon, Caliente Canyon, Greenhorn

exotic

P210 K142

Maclura pomifera (Raf.) C. Schneider

Osage orange

<10m tall, deciduous

disturbed areas, abandoned windbreaks, alkali plains

E. of Kern Lake

exotic

P211 K142

Morus alba L.

white mulberry

10-15m, deciduous

disturbed areas, moist soil, stream banks

Kern River

exotic

P211 K143

Order JUGLANDALES Family JUGLANDACEAE

Juglans californica S. Watson

California black walnut

<25m, deciduous

throughout South Fork Kern River forest - planted trees found on Highway 178 near Canebrake

native

/cult.

P210 K124

Juglans californica S. Watson var. hindsii Jepson

Northern California black walnut

15-25m, deciduous

canyons, valleys 50-200m

Glennville Rd. 0.4mi. E. of Woody, cienega below Ft. Tejon, SJV

native

/cult.

P210 K124

Order FAGALES Family  FAGACEAE

Chrysolepis sempervirens (Kellogg) Hjelmq.

Chinquapin

<<3m shrub, evergreen

rocky slopes, coniferous forest, chaparral, 700-3300m

high elevation Greenhorns, Kern Plateau, Piute Mtns, Breckenridge, Sunday Peak

native

P211 K113

Quercus Xalvordiana Eastwood

Alvord's oak

<3m, shrub/tree, evergreen

dry slopes, hills

Temblors, San Emigdio

native

P211 K113

Quercus agrifolia Ne

coast live oak

10-25m, evergreen

valleys, slopes, mixed-evergreen woodland <1500m

Chico Martinez Canyon, Temblor Range, Drake Ridge, Bill Little Spring

native

P211 K113

Quercus agrifolia var. agrifolia Ne

California live oak

10-25m, evergreen

<900m, coast range

Chico Martinez Canyon, Temblor Range, Drake Ridge, Bill Little Spring

native

P211 K113

Quercus berberidifolia Liebmann

scrub oak

shrub, 1-3m, evergreen

dry slopes, chaparral, 300-1500m

occasional Tehachapi and San Emigdio Ranges

native

 

P212 K113

Quercus chrysolepis Liebmann

maul oak, canyon live oak

<20m, evergreen, acorn cup 17-30mm wide, 5-10mm deep, nut 25-30mm long, 14-20mm wide

canyons, shaded slopes, chaparral, mixed evergreen forest, woodland, 200-2600m

desert facing canyons, E. slope Mtns, Tehachapi, Rising Canyon NE of Lebec

native

P211 K113

Quercus chrysolepis var. nana (Jepson) Jepson

canyon live oak

shrubs, evergreen, leaves 2-4cm

exposed high ridges

black mountain, greenhorn, RAM rock , Kern plateau

native

Quercus douglasii Hooker and Arnott

blue oak

tree, 6-20m, deciduous

cismontane foothills, middle elevation woodlands Blue Oak bark

Temblors, Tehachapi canyons, Glennville, jawbone canyon, Westside Kelso valley

native

P211 K113

Quercus garryana Hooker

Oregon oak

tree, 18-20m, deciduous

slopes, Woodland, mixed evergreen, conifer forests, 300-1,800m

Sierra Nevada forest, Tehachapi, ne Western Transverse range, Liebre mountain

native

P212 K113

Quercus garryana var. breweri (Engelmann) Jepson

shin oak

shrub, 1-5m, deciduous

slopes, mixed evergreen, conifer forest, 600-1,800m

common below yellow pine forest, Glenville to northeast of Lebec

native

P212 K113

Quercus john-tuckeri K. Nixon and C. H. Muller

Tucker's oak

shrub, 2-5m, up to 7m

desert borders, chaparral, Pinyon juniper Woodland, 900 to 2,000m

arid slopes Tehachapi, Cache Peak , Weldon pond, pine tree canyon

native

P213 K113

Quercus kelloggii Newberry

California black oak

deciduous

slopes, valleys, Woodlands, conifers forest, 200-2,400m

lower levels of yellow pine forest

native

P212 K113

Quercus lobata Ne

valley oak

deciduous

slopes, valleys, savannah

Glenville, Tehachapi, Lebec, Cameron canyon, temblors - white oak spring, Agua Media Canyon

native

P211 K113

Quercus wislizenii A. DC.

interior live oak

evergreen

interior canyons, slopes, valleys, chaparral, pine / oak Woodland, <2,000m

native

Quercus wislizenii var. frutescens Engelmann

interior scrub oak

shrub, 2-6m, evergreen

chaparral, 300 to 2,000m

Tehachapi, south coast range

native

P211 K113

Quercus wislizenii var. wislizenii A. DC.

interior live oak

tree, 10-22m, evergreen

canyons, slopes, pine/oak Woodland , <1,600m

transverse, south coast range, Sierra Nevada forest

native

Lithocarpus densiflorus (Hooker & Arnott) Rehder.

tan oak

<30 (45) m, evergreen

red fir forest

 

Lithocarpus densiflorus var. densiflorus (Hooker & Arnott) Rehder.

tanoak

tree, <30 (45) m, evergreen

red fir forest <1500m

Sierra Nevada, coast range, western transverse range

Lithocarpus densiflorus var. echinoides (A. Br. Campst.) Abrams

Tanoak shrub

shrub, 1-3m tall, evergreen

red fir forests, mixed conifer forest, 600-2,000m

Sierra Nevada

Family BETULACEAE

Alnus rhombifolia Nuttall

white alder

tree, <35m, deciduous

Douglas oak Woodland to red fir forest

along permanent streams, south to El Paso creek, Kern River by lake Ming isolated colony

native

P210 K59

Subclass  DILLENIIDAE Order  VIOLALES Family  TAMARICACEAE

Tamarix aphylla (L.) Karsten

Athel tree

tree, <12m

washes, roadsides, <200m

Poso creek by Blankenship Rd, n Wasco, old homesteads, camps, oil fields

exotic

P285 K216

Tamarix gallica L.

French tamarisk

shrub/tree, <8m

washes, flats, roadsides, <300m

exotic

Tamarix parviflora DC

Fourstamen tamarisk

shrub/tree, 1.5-5m

washes, slopes, sand dunes, roadsides, <800m

wet places Mojave, Rosamond dry lake, north temblors

exotic

P285 K216

Tamarix ramosissima Ledeb.

salt cedar

shrubs/tree, <8m

washes, stream banks, ditches, <800m

Castac lake, Kern National Wildlife Refuge

exotic

P285 K216

Order  SALICALES Family  SALICACEAE

Populus angustifolia James

narrow-leaved cottonwood

tree, <15m, deciduous, dioecious

stream sides, 1,200 -1,800m

Kern river above Kernville

native

P208 K200

Populus balsamifera ssp. trichocarpa (Torrey & A. Gray) Brayshaw

black cottonwood

tree, <30m, deciduous

alluvial bottom lands, streams sides, <2,800m, Douglas oak Woodlands

Rosamond dry lake, temblor ranch

native

P208 K202

Populus fremontii ssp. fremontii S. Watson

Fremont Cottonwood

tree, <20m

alluvial bottom lands, streams sides, <2,000m

Tejon Canyon, El Paso Canyon, Bull Run Creek, Greenhorn

native

P208 K202

Salix alba L..

white willow

tree, <25m

disturbed places, near settlements, <1,000m

exotic

Salix babylonica L.

weeping willow

tree, <20m

disturbed soils near settlements, <1,000m

exotic

Salix bebbiana Sarg.

Bebb willow

shrub/tree, <10m

streams, lake shores, 1200-1400m, in cultivation

not native to Kern County

from N. CA

Salix exigua (includes hindsiana) Nuttall

sandbar willow

shrub, <7m

streamside, marshes, wet ditches, <2700m

Poso Creek NE Wasco, Occasional to common in sunny wet places, cismontane, yellow pine springs

native

P290 K203

Salix geyeriana Anderson var. argentea (Bebb) C.K. Schneider

silver willow

Shrub, <5m

subalpine streams, meadows, 1450-3600m

common, Cannell Creek, SW Pine Flat Kern Plateau

native

P209 K203

Salix gooddingii C. Ball

Goodding's black willow

tree, <30m, dioecious

streamside, marshes, seepage areas, washes, meadows, <500m

native

P209 K203

Salix laevigata Bebb

red willow

tree, <15m, dioecious

riverbanks, seepage areas, lake shores, canyons, ditches, 0-1700m

common, SJV wet places, rare Rosamond Lake, seep El Paso Range, 1.5m E. of Last Chance Canyon

native

P209 K203

Salix lasiolepis Bentham

arroyo willow

tree, <10m, dioecious

shores, marshes, meadows, springs, bluffs, <2800m

common, foothills to yellow pine forest, E. Erskine Creek, Temblors, Claraville meadow, Indian Wells Canyon, Kern Plateau

native

P209 K203

Salix lemmonii Bebb

Lemmon's willow

shrub, <4m, dioecious

streams, wet meadows, burned over subalpine forests, 1400-3500m

spring 7200ft Bartolas Country

native

P209 K203

Salix lucida Muhlenb.

shining willow

tree, <10m, dioecious

 

 

native

 

Salix lucida ssp. lasiandra (Benth.) E. Murray

shining willow

tree, <10m, dioecious

wet meadows, shores, seepage areas, foothills

wet places Mtns to El Paso Canyon, Tehachapi east to Spanish Needle Creek n. Walker Pass, N. Fork Kern

native

P209 K203

Salix lutea Nuttall

Yellow willow

small shrub/tree <7m, dioecious

creek margins, wet meadows, 900-3100m

sandy flat upper Bartolas Creek

native

P210 K203

Salix melanopsis Nuttall

dusky willow

shrub, <4m, dioecious

stream banks, often among rocks, 800-2700m

Kern River above Lake Isabella, Cache Creek above Monolith in Tehachapi

native

P210 K204

Salix scouleriana Barratt

Scouler's willow

shrub/slender tree, <10m, dioecious

dry to moist forests, meadows, springs, shaded moist places

north slopes Ponderosa pine forest in Greenhorns and Breckenridge

native

P210 K205

Order  ERICALES Family  ERICACEAE

Arctostaphylos glauca Lindley

big-berry manzanita

shrub-like tree, 2-8+m, evergreen

rocky slopes, chaparral, woodlands

occ. San Emigdio - Mil Potreros to Canyon de los Gatos Montes se slopes, Tehachapi's Bear Trap Canyon, Temblors, Mesa Ridge

native

P301 K99

Arctostaphylos pungens Kunth

Mexican manzanita

shrub, 1-3m, evergreen

rocky slopes, ridges, coniferous forest, chaparral through Jeffrey pine forest

Mt. Pinos region, E. slope Tehachapi Mtns.

native

P301 K100

Arctostaphylos viscida ssp. mariposa (Dudley) P. Wells

Mariposa manzanita

evergreen

rocky slopes, chaparral, woodlands, woodland, 600-1850m

SN

native

P301 K102

Arctostaphylos viscida ssp. viscida C. Parry

smooth white-leaf manzanita

shrub/tree, 1-5+m,  evergreen

chaparral, coniferous forest, rocky slopes, woodland, 150-1500m

scarce in higher elevations Douglas oak woodland, rare in Ponderosa pines Greenhorn, Tollgate Ridge Tehachapi

native

P301 K103

Rhododendron occidentale (Torrey & Gray) A. Gray

western azalea

shrub, <5m, deciduous

stream banks, seeps, coniferous forests, <2200m

Cane Springs Greenhorn range

native

P302 K100

Subclass ROSIDAE Order ROSALES Family ROSACEAE

Prunus andersonii A. Gray

desert peach

shrub <2m, deciduous

rocky slopes, flats, coniferous forest, 900-2600m

pinyon woodland Horse Canyon, Short Canyon, Canebrake Creek, E. Walker Pass Station, Bath House Canyon Kernville

native

P257 K200

Prunus emarginata (Hook.) Walp.

bitter cherry

shrub/tree, 1-10m, deciduous

rocky slopes, canyons, chaparral, mixed-evergreen, coniferous forests

high Tehachapi summit ridges

native

P257 K200

Prunus fasciculata (Torrey) A. Gray

desert almond

shrub, 1-2m

slopes, canyons, washes, shrub land, woodland, <2200m

upper Jawbone Canyon, Pine Tree Canyon 1mi. E. of Onyx

native

P258 K200

Prunus ilicifolia (Nutt.) Walp.

holly-leaf cherry

shrub/tree <15m, deciduous

canyons, slopes, shrub land, woodland

Mt. Abel chaparral, Temblor Canyon

native

P258 K200

Prunus subcordata Benth.

Sierra plum

shrub/tree, <8m, deciduous

mixed evergreen, coniferous forest

occ. Greenhorn, scarce Black Bob Canyon, San Emigdio, Glennville

native

P258 K200

Prunus virginiana L. var. demissa (Nutt.) Torrey

western choke cherry

shrub/small tree, <6m, deciduous

rocky slopes, canyons, scrubland, oak/pine woodland, coniferous forest, 100-2900m

occ. Mtns. Douglas oak woodland to Jeffrey pine forest, scarce San Emigdio, Rock Spring in McLean Canyon Temblors

native

P257 K200

Adenostoma fasciculatum Hooker & Arnott

chamise

shrub, <4m, evergreen

chaparral, Douglas oak woodland

Caliente, back canyons to east slope of extreme SW Tehachapi

native

P257 K200

Adenostoma fasciculatum var. obtusifolium S. Watson

San Diego chamise

native

Cercocarpus betuloides Torrey & A. Gray

Mountain mahogany

shrub/tree, 2-8m, evergreen

chaparral, Douglas oak woodland

abundant following burns, Greenhorns

native

P255 K198

Cercocarpus betuloides var. betuloides Torrey & A. Gray

birch-leaf mountain-mahogany

dry rocky slopes, chaparral, <2500m

SN, CW, TR

native

P255 K198

Cercocarpus ledifolius Nuttall

Curl leaf mountain mahogany

shrub/tree, 1-10m, evergreen

 

native

P256

Cercocarpus ledifolius var. intermontanus N. Holmgren

curl-leaf mountain mahogany

tree, <8m, evergreen

pinyon juniper woodland, sagebrush scrub, 1500-2800m

San Emigdio Creek, Tecuya Ridge, Mil Potreros

native

P256 K198

Cercocarpus ledifolius var. ledifolius Nuttall

curl-leaf mountain-mahogany

<3m, evergreen

steep slopes, open pine forest, 1200-2500m

sSNH

native

Order FABALES Family  FABACEAE

Acacia baileyana F. Muell.

Cootamundra wattle

tree, <6m, evergreen

exotic

Albizia julibrissin Durz.

Mimosa, Silk Tree

tree, <13m, deciduous

disturbed, urban areas

volunteers growing in canal along Manor St. Bakersfield

exotic

Caesalpinia gilliesii (Hook.) D. Dietr.

bird-of-paradise

shrub/small tree, <4m, evergreen

disturbed areas, urban to rural

s. SJV, Temblors

exotic

P270 K105

Cercis occidentalis Torrey

western redbud

tree, <7m, deciduous

dry, shrubby slopes, canyons, ravines, stream banks, chaparral, foothill woodlands to yellow pine forest, 100-1500m

S. Fork Canyon E. of Onyx

native

P263 K105

Parkinsonia aculeata L.

Mexican palo verde, Jerusalem thorn

tree, <12m, deciduous

disturbed dry areas, <400m

fields Oildale, Bakersfield

exotic

P270 K109

Prosopis glandulosa Torrey var. torreyana (L. Benson) M. Johnston

Mesquite, honey mesquite

shrub/tree, <7m, deciduous

grasslands, alkali flats, washes, bottomlands, sandy alluvial flats, mesas, 0-1700m

alkali plains E. & ne of Buena Vista Lake, Poso Creek, s. of Koehn Lake

native

P270 K110

Prosopis pubescens Benth.

Screw-bean, tornillo

shrub/tree, <10m, deciduous

creeks, river bottoms, sandy or gravelly washes, ravines, 100-1300m

MD

native

Prosopis velutina Wooton

velvet mesquite

shrub/tree, <15m, deciduous

sandy, rocky soil in canyons, washes, 1700m

exotic

Robinia pseudoacacia L.

black locust

tree

abandoned houses, roadsides, canyon slopes, stream banks, 50-1900m

Buena Vista slough, Hart Park

exotic

P271 K110

Order MYRTALES Family  MYRTACEAE

Eucalyptus camaldulensis Dehnh.

red gum

tree, <25m

disturbed places, <300m

Gordon's Ferry, Democrat Hot Springs, El Paso Creek Tejon Hills

exotic

P291

Eucalyptus polyanthemos Schauer

silver dollar tree

tree, <25m

disturbed areas

isolated encampments around valley, no spontaneous occurrences known

exotic

P291

Order  CORNALES Family CORNACEAE

Cornus glabrata Benth.

brown dogwood

shrub/small tree, 1.5-6m, deciduous

montane streamside woodland

Lumreau Creek Greenhorn Mtn.

native

P301 K87

Cornus nuttallii Audubon

western dogwood

tree, <25m, deciduous

montane streamside woodland

Sandy Creek w. of Sunday Peak Greenhorns, Spout Spring Greenhorn Summit, Mill Creek w. Basket Pass

native

P300 K87

Cornus sericea L. ssp. sericea

American dogwood

shrub, 1.5-4m, deciduous

moist habitats, <2800m

cienega below mountain meadow E. Sunday Peak, rare yellow pine forest, SW to Black Bob Canyon San Emigdio

native

P301 K87

Family  GARRYACEAE

Garrya flavescens S. Watson var. pallida (Eastwood) Bacigalupi

silk tassel bush

shrub, <3m, evergreen, dioecious

desert slopes, chaparral, pine/oak woodland, 650-2350m

E. Greenhorn to Mt. Abel, scarce in Jeffrey pine forest on Kern Plateau

native

P300 K114

Order  CELASTRALES Family  CELASTRACEAE

Euonymus occidentalis Torrey

burning bush

shrub/tree, 2-6m, deciduous

shaded stream banks, canyons

riparian streamside

 

 

Euonymus occidentalis var. occidentalis Torrey

western burning bush

Mixed Evergreen Forest, Closed-cone Pine Forest, Yellow Pine Forest

Reported as presence implied by Jepson Manual but not confirmed by other sources (6) in KRNw: western Kern county, Central Valley portion.

Order  RHAMNALES Family  RHAMNANCEAE

Ceanothus X lorenzenii

whitethorn X tobacco brush

 

 

 

 

 

Ceanothus velutinus Douglas

snowbrush

shrub/tree, <2m, evergreen

open wooded slopes, <3000m

SNH

 

 

Ceanothus velutinus var. velutinus Douglas

snowbrush ceanothus

 

1000-3000m

SNH

 

 

Family Elaeagnaceae

Shepherdia argentea Nuttall

buffalo berry

shrub, 2-6m, deciduous, dioecious

streams, river bottoms, slopes, 1000-2000m

Mil Potreros, San Emigdio Creek

native

P290 K97

Elaeagnus angustifolia L.

Russian olive

shrub/tree

disturbed places, riparian woodlands

South Fork Kern River from Wildlife area upstream to Canebrake Ecological Reserve.

exotic

 

Order  SAPINDALES Family  HIPPOCASTANACEAE

Aesculus californica (Spach) Nutt.

California buckeye

shrub/tree, 4-12m, deciduous

dry slopes, canyons, borders of streams, <1700m

common in Kern Canyon, occ. Sierra to Transverse range, rare Plieto Canyon

native

P280 K116

Family  ACERACEAE

Acer glabrum Torrey

Mountain maple

shrub/tree, 2-6m, deciduous, dioecious

moist to fairly dry montane areas, rocky slopes, canyons, 1500-2800m

native

P280 K12

Acer glabrum var. diffusum (Green) F.J. Smiley

Rocky Mountain maple

shrub/tree, deciduous, dioecious

moist to fairly dry montane areas, rocky slopes, canyons, 1500-2800m

Sierra crest to Mt. Jenkins

native

P280 K12

Acer glabrum var. torreyi (Green) F.J. Smiley

Greene's mountain maple

shrub/tree, 2-6m, deciduous, dioecious

moist to fairly dry montane areas, rocky slopes, canyons, 1500-2800m

Inspiration Point Piute Mtns.

native

P280 K12

Acer macrophyllum Pursh

big-leaf maple

tree, 5-30m, deciduous, dioecious

stream banks, canyons, <1500m

El Paso Creek Tehachapi, Black Bob Canyon San Emigdio

native

P280 K12

Acer negundo L. var. californicum (Torre & Gray) Sarg.

box elder

tree, 6-20m, deciduous, dioecious

canyon bottoms, creeks, <1800m

Lebec to El Paso Canyon, Jawbone Canyon above Wilderness Ranch, Hart Park

native

P280 K12

Family  ANACARDIACEAE

Schinus molle L.

Peruvian pepper tree

tree, deciduous

washes, slopes, abandoned fields, <700m

lower Kern Canyon, Bakersfield, Belridge

exotic

P279 K15

Family  SIMAROUBACEAE

Ailanthus altissima (Miller) Swingle

ailanthus, tree-of-heaven

tree, <20m, deciduous, dioecious

disturbed urban areas, waste places, <1250m

common along entire Kern River

exotic

P277 K214

Family  MELIACEAE

Melia azedarach L.

China berry

tree, <10m, deciduous, dioecious

disturbed places, <200m

around abandoned buildings, waste places

exotic

P279 K141

Subclass ASTERIDAE Order  SOLANALES   Family  SOLANACEAE

Nicotiana glauca Graham

tree tobacco

tree, <6m

open disturbed flats or slopes, creeks, <1100m

east side foothills along entire Kern River

exotic

P332 K215

Order  SCROPHULARIALES   Family OLEACEAE

Fraxinus dipetala Hooker & Arnott

California ash

tree, <7m

canyons, slopes, chaparral, oak/pine woodland, 100-1300m

SN, CW, TR

native

Fraxinus latifolia Bentham

Oregon ash

tree, 10-25m, leaves opposite, compound, dioecious

just above Kernville, Wagy Flat, Caliente Canyon

native

P303 K144

Fraxinus velutina Torrey var. coriacea (Watson) Rehder.

velvet ash

tree, <10m

canyons, stream banks, woodlands, 200-1600m

by range should occur, Twisselmann doesn't treat but refers to intergrades with F. latifolia

Olea europaea L.

olive

tree, <10m, gray bark, simple leaves, opposite, fruit drupe

disturbed places, <200m

Sco, GV, Kern River, Taft

exotic

Order Rubiales    Family Rubiaceae  - madders

Cephalanthus occidentalis L.

Buttonwillow, buttonbush

shrub 2-9m, leaves opposite, corolla white

streambanks

Kern River, Jerry Slough, Buena Vista to Tulare Basin

native

P346 K201

Order  DIPSACALES     Family CAPRIFOLIACEAE

Sambucus mexicana C. Pres.

blue elderberry

shrub, 2-8m, multiple trunks, opposite leaves, 3-9 leaflets

moist grassland, riparian, montane seeps, yellow pine forest

Greenhorns, Kern Valley, Kern River to Buena Vista Lake

native

P348 K77

Class MONOCOTYLEDONES - Monocots

Subclass ARECIDAE Order ARECALES Family ARECACEAE

Washingtonia filifera (Lindley) Wendland

California fan palm

tree, <20m, gray green blades, 1-2m long, 40-60 segments, oblong/ovate black fruit

seeps, springs, streamside

mouth of Kern Canyon

native?

may be introduced by indigenous people or dam builders

researching answer

P198 K21

Subclass LILIIDAE Order LILIALES Family ARECACEAE

Yucca brevifolia Engelmann

Joshua tree

tree, 1-15m, 20-25cm leaf

high desert, chaparral, creosote bush scrub, 500-2000m

E. Tehachapis, Kelso, S. Fork, Walker Pass

native

P205 K136

Yucca brevifolia var. herbertii (J. M. Webber) Munz

Kern Joshua

tree, 1-15m, 20-25cm leaf

high desert, chaparral, creosote bush scrub, 500-2000m

Tejon Pass, Antelope Valley (LA Co) to Walker Pass, Red Rock Canyon

native

P206 K136

Personal Communications

I wish to thank the following people for their help:

Eve Laeger - for review of the checklist and adding her personal observations

Reed Tollefson - for verifying distribution of certain species

References

2002. CalFlora Database. http://www.calflora.org accessed 31 Mar 2002.

Hickman, J. C. ed. 1993. The Jepson Manual of Higher Plants of California. UC Press, Berkeley.

Metcalf, W. 1968. Introduced Trees of Central California. UC Press, Berkeley.

Moe, L. M. 1995. A Key to Vascular Plant Species of Kern County, California. California Native Plant Society, Sacramento, CA.

Petrides, G. A., & O. Petrides. 1992. Western Trees: A Peterson Guide. Houghton Mifflin, NY.

Twisselmann, E. C. 1956. Flora of the Temblor Range. Wasmann Journal of Biology, UCSF. 14:2.

Twisselmann, E. C. 1967. A Flora of Kern County, California. Wasmann Journal of Biology, UCSF. 25.

Copyright 1998-2014
Nature Ali. All rights reserved.


Nature Alley is dedicated to protecting natural communities wherever they exist. She is involved in many scientific and educational programs, promoting environmental appreciation and ethics. Frontispiece:

 

 

Photo Alison Sheehey NatureAli. All rights reserved.

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Copyright 1998-2014
by Nature Ali. All rights reserved.