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Field Guide |
Floristic List for Palo Verde Mountains,
Imperial County
This floristic list is for the area just nw of Palo Verde Peak (33° 20' 18''N, 114° 46' 52"W; elev. approx. 200 m) in the middle of the Palo Verde Mountains of northeastern Imperial County, California. The area was visited on 20 April 2000 during a rather dry year and no annual plants were seen. Even most of the perennial plant species were without foliage or flower and barely identifiable. The area is composed mostly of rocky volcanic substrates on the slopes, but it is dissected by small, sandy arroyos. The rocky slopes are dominated by Ambrosia dumosa, Fouquieria splendens, Fagonia sp., and Krameria grayi, but Chorizanthe rigida, Hibiscus denudatus, and Opuntia basilaris are also common. The rocky crevices on the upper slopes have a lot of Pleurocoronis pleuriseta and Peucephyllum schottii. The arroyos are lined with perennial shrubs and trees such as: Cercidium floridum, Olneya tesota, Acacia greggii, and Hyptis emoryi. There is no doubt that this minimal floristic list can be added to greatly after a better rainy season.
The only plants with flowers were Cercidium floridum ssp. floridum and Acacia greggii.
| Family |
Species |
Common Name |
| Asclepiadaceae |
Asclepias albicans |
White-Stemmed/Wax Milkweed |
|
| Asteraceae |
Ambrosia dumosa |
Burro Bush, White Bursage, Huizapol |
| Asteraceae |
Atrichoseris platyphylla |
Tobacco-Weed, Gravel-Ghost |
| Asteraceae |
Bebbia juncea |
Sweetbush |
| Asteraceae |
Encelia farinosa |
Brittlebush, Incienso |
| Asteraceae |
Peucephyllum schottii |
Pygmy-Cedar |
| Asteraceae |
Trixis californica |
Trixis, Plumilla |
|
| Cactaceae |
Ferocactus cylindraceus |
Barrel Cactus, Biznaga |
| Cactaceae |
Opuntia basilaris |
Beavertail Cactus |
| Cactaceae |
Opuntia ramosissima |
Diamond Cholla |
|
| Ephedraceae |
Ephedra sp. |
Mormon Tea, Canatillo |
|
| Euphorbiaceae |
Ditaxis lanceolata |
|
| Euphorbiaceae |
Euphorbia micromera |
|
|
| Fabaceae |
Acacia greggii |
Catclaw Acacia, Wait-a-minute Bush, Uña de Gato |
| Fabaceae |
Cercidium floridum ssp. floridum |
Palo Verde |
| Fabaceae |
Olneya tesota |
Ironwood, Palo Fierro |
| Fabaceae |
Psorothmanus spinosus |
Smoke Tree, Corona de Cristo |
|
| Fouquieriaceae |
Fouquieria splendens |
Ocotillo |
|
| Krameriaceae |
Krameria erecta |
Pima Rhatany, Purple Heather |
| Krameriaceae |
Krameria grayi |
White Rhatany |
|
| Lamiaceae |
Hyptis emoryi |
Desert Lavender, Salvia |
|
| Malvaceae |
Hibiscus denudatus |
Pale Face |
| Malvaceae |
Sphaeralcea sp. |
|
|
| Polygonaceae |
Chorizanthe rigida |
Spiny-Herb |
| Polygonaceae |
Eriogonum inflatum |
|
|
| Solanaceae |
Lycium spp. |
Desert Thorn, Box Thorn, Frutilla |
| Solanaceae |
Physalis crassifolia |
|
|
| Zygophyllaceae |
Fagonia laevis |
|
| Zygophyllaceae |
Larrea tridentata |
Creosote Bush, Gobernadora |
|
