NAZ Flora: A Photographic, Annotated Catalog of Northern Arizona Vascular Plants. Photo shows Lomatium foeniculaceum var. macdougalii (MacDougal's Biscuitroot). Click here to return to home page.

Euphorbiaceae

Spurge Family

Acalypha neomexicana.  NEW MEXICO COPPERLEAF.  Annual.  Reported from Yavapai County, 2500-7500 feet [McD].


Argythamnia claryana (=Ditaxis adenophora misapplied).  DESERT SILVERBUSH.  Perennial.  Reported from near the mouth of Bill Williams River, southwestern Mohave County [McD].


Argythamnia cyanophylla (=Ditaxis cyanophylla).  CHARLESTON MOUNTAIN SILVERBUSH.  Perennial.  Mohave, Coconino, and Apache counties, 6000-6500 feet [McD].


Argythamnia lanceolata (=Ditaxis lanceolata).  NARROWLEAF SILVERBUSH.  Shrub.  Reported from southern Yavapai County, at ca. 3000 feet [McD].


Argythamnia mercurialina var. mercurialina (=Ditaxis mercurialina).  TALL SILVERBUSH.  Perennial.  Reported from Fort Apache, southern Navajo County, at ca. 5600 feet [McD].


Argythamnia neomexicana (=Ditaxis neomexicana).  NEW MEXICO SILVERBUSH.  Annual or perennial.  Reported from Mohave County, and from Grand Canyon in Coconino County, 1000-4000 feet [McD].


Bernardia incana.  HOARY MYRTLECROTON.  Shrub.  Mohave County, and in Grand Canyon and Havasu Canyon of Coconino County, 1500-5500 feet [McD].


Chamaesyce abramsiana (=Euphorbia abramsiana).  ABRAMS' SANDMAT.  Annual.  Reported from Yavapai County, 3000 feet or lower [McD].


Chamaesyce albomarginata (=Euphorbia albomarginata).  WHITEMARGIN SANDMAT.  Perennial.  Throughout region at 1000-7500 feet [McD].


Chamaesyce arizonica (=Euphorbia arizonica).  ARIZONA SANDMAT.  Perennial.  Reported from Yucca southward in Mohave County and from Grand Canyon in Coconino County, 1000-4000 feet [McD].


Chamaesyce capitellata (=Euphorbia capitellata).  HEAD SANDMAT.  Perennial.  Yavapai County, 5100 feet and lower, probably elsewhere in the region [McD].


Chamaesyce dioica (=Euphorbia indivisa).  ROYAL SANDMAT.  Annual.  Reported from Yavapai County, 3000-5000 feet [McD].


Chamaesyce fendleri (=Euphorbia fendleri).  FENDLER'S SANDMAT.  Perennial.  Throughout region, 4000-7500 feet [McD].


Chamaesyce florida (=Euphorbia florida).  CHIRICAHUA MOUNTAIN SANDMAT.  Annual.  Reported from Yavapai County, 5000 feet or lower [McD].


Chamaesyce glyptosperma (=Euphorbia glyptosperma).  RIBSEED SANDMAT.  Annual.  Reported from Coconino, Navajo, and Apache counties, 5000-7500 feet [McD].


Chamaesyce hyssopifolia (=Euphorbia hyssopifolia).  HYSSOPLEAF SANDMAT.  Annual.  Reported from Yavapai County, 1000-6000 feet [McD].


Chamaesyce melanadenia (=Euphorbia melanadenia).  SQUAW SANDMAT.  Perennial.  Mohave and Yavapai counties, Grand Canyon of Coconino County, White Mountains of Apache County, 800-5000 feet [McD].


Chamaesyce micromera (=Euphorbia micromera).  SONORAN SANDMAT.  Annual.  Reported from Yavapai, Coconino, and Navajo counties, 3000-5000 feet [McD].


Chamaesyce ocellata ssp. arenicola (=Euphorbia ocellata var. arenicola).  CONTURA CREEK SANDMAT.  Annual.  Reported from near Virgin River in northwestern Mohave County, ca. 1500 feet [McD].


Chamaesyce parryi (=Euphorbia parryi).  PARRY'S SANDMAT.  Annual.  Throughout region at 1500-6000 feet [McD].


Chamaesyce pediculifera (=Euphorbia pediculifera).  CARRIZO MOUNTAIN SANDMAT.  Perennial.  Reported from southern Yavapai County, 4500 feet or lower [McD].


Chamaesyce polycarpa (=Euphorbia polycarpa; Euphorbia polycarpa var. hirtella).  SMALLSEED SANDMAT.  Perennial.  Mohave and southern Yavapai counties, in Grand Canyon in Coconino County, 800-3500 feet [McD].


Chamaesyce revoluta (=Euphorbia revoluta).  THREADSTEM SANDMAT.   Annual.  Mohave and Coconino counties, 3000-6000 feet [McD].


Chamaesyce serpyllifolia ssp. serpyllifolia (=Euphorbia serpyllifolia).  THYMELEAF SANDMAT.  Annual.  Throughout region at 3000-7000 feet [McD].


Chamaesyce serrula (=Euphorbia serrula).  SAWTOOTH SANDMAT.   Annual.  Reported from Peach Springs in Mohave County, at ca. 4800 feet [McD].


Chamaesyce setiloba (=Euphorbia setiloba).  YUMA SANDMAT.  Annual.  Mohave County, 800-5000 feet [McD].


Chamaesyce vermiculata (=Euphorbia vermiculata).  WORMSEED SANDMAT.  Annual.  Southeastern Yavapai County, southern Navajo and Apache counties, 6000-7500 feet [McD].


Croton californicus var. californicus (=Croton longipes).  CALIFORNIA CROT0N.  Perennial.  Extreme northwestern Mohave County [McD].


Croton texensis.  DOVE WEED.  SKUNK WEED.  TEXAS CROTON.  Annual.  Yavapai, Coconino, Navajo, and Apache counties [McD].


Euphorbia aaron-rossii.  ROSS SPURGE.  MARBLE CANYON SPURGE.  Perennial.  Coconino County, Colorado River corridor: Marble Canyon, Litle Colorado River drainage; Forster Canyon, 2100-3300 feet [ARPC].


Euphorbia bilobata.  BLACKSEED SPURGE.  Annual.  Reported from Yavapai County, 3500-6000 feet [McD].



Euphorbia brachycera (=Euphorbia lurida; Euphorbia odontadenia; Euphorbia robusta).  HORNED SPURGE.  Perennial.  Throughout region, but apparently most common in Coconino County, 3500-7500 feet [McD].


Euphorbia chamaesula.  MOUNTAIN SPURGE.  Perennial.  Coconino, Navajo, and Apache counties, probably also Yavapai County, 5500-8500 feet [McD].


Euphorbia cuphosperma (=Euphorbia dentata var. cuphosperma).  Annual.  Southern Yavapai and Apache counties, 3000-8000 feet, intergrades with Euphorbia dentata [McD].


Euphorbia dentata.  TOOTHED SOURGE.  Annual.  Southrn Yavapai and Apache counties, 3000-8000 feet [McD].


Euphorbia exstipulata.  SQUARESEED SPURGE.  Annual.  Reported from Mohave, Yavapai, and Coconino counties, 4000-6000 feet [McD].


Euphorbia incisa var. incisa.  MOJAVE SPURGE.  Perennial.  Mohave, Yavapai, Coconino, and Navajo counties, 3000-9000 feet [McD].


Euphorbia incisa var. mollis.  MOJAVE SPURGE.  Perennial.  Yavapai County [McD].


Euphorbia palmeri var. palmeri.  WOODLAND SPURGE.  Perennial.  Mohave, Yavapai, and Coconino counties, 4000-8000 feet [McD].


Euphorbia palmeri var. subpubens.  WOODLAND SPURGE.  Perennial.  ". . . has about the same range as the species and probably intergrades with it." [McD].


Euphorbia spathulata (=Euphorbia alta).  WARTY SPURGE.  Annual.  Yavapai County and White Mountains of Apache County, 3500-8000 feet [McD].


Jatropha macrorhiza var. septemfida. RAGGED NETTLESPURGE.  Perennial.  Reported from McNary, Apache County at ca. 7200 feet [McD].


Reverchonia arenaria. SAND REVERCHONIA.  Annual.  Leupp in eastern Coconino County, Hopi Reservation in Navajo County, 3000-6000 feet [McD].


Ricinus communis. CASTORBEAN.  Shrub.  Eastern Yavapai County [McD].


Stillingia linearifolia. QUEEN'S-ROOT.  Perennial.  Reported from Mohave County, 800-2000 feet [McD].


Tetracoccus hallii. HALL'S SHRUBBY-SPURGE.  Shrub.  Reported from Rawhide Mountains, southern Mohave County, ca. 2500 feet [McD].


Tragia ramosa (=Tragia stylaris).  BRANCHED NOSEBURN.  Perennial.  Throughout region at 2500-7400 feet [McD].



This page revised 9 November 2006.


Northern Arizona Flora
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