NO. 3 DUNKLE : PLANT ECOLOGY, CHANNEL ISLANDS 327 



POLYGONACEAE 



Eriogowum giganteum Wats. var. compactum Dunkle, 



Round-headed Queen Anne's Lace. 

 Suffrutescent perennial. Locally common on north, south, and east bluffs. 

 Endemic to Santa Barbara and Santa Catalina islands. 



Pterostegia drymarioides F. & M. Maiden-hair Buckwheat. 



Annual. Common on eastern bluffs in Coreopsis association. On all the 

 islands, including Guadalupe, except San Nicolas; Baja California to Oregon. 

 Indigenous. 



CHENOPODIACEAE 



Aphanisma blitoides Nutt. Seaside Blitum. 



Annual. Occasional on eastern bluffs and northern canyon exposures, es- 

 pecially in shallow caves. Also on the four northern islands, Santa Catalina, 

 San Clemente, and Guadalupe islands; adjacent mainland coast. Probable 

 relict, endemic to areas of southern California maritime climate. 



Chenopodium californicuin Wats. Soap Plant. 



Geophyte, occasionally suffrutescent. Common on eastern terraces and in 

 canyons. On all the islands; cismontane southern to central California. 

 Indigenous. 



Chenopodium rnurale L. Nettle-leafed Goosefoot. 



Annual. Common in Suaeda-Larus biome and widespread on the ridge, 

 terraces and canyons. On all the islands; mainland. Introduced from Europe. 



Atriplex californica Moq. California Saltbush. 



Suffrutescent perennial. Abundant on headlands and bluffs. On all the 

 islands; Baja California to central California. Endemic to areas of Cali- 

 fornia maritime climate. 



Atriplex rosea L. Red Scale. 



Annual. Occasional on eastern bluffs. Unreported from the other islands ; 

 mainland. Introduced from Europe. 



Atriplex semibaccata R. Brown Australian Saltbush. 



Suffrutescent herb. Common on all the terraces. On all the islands; mainland. 

 Introduced from Australia. 



Suaeda californica Wats. var. puhescens Jepson. Sea Elite. 



Suffrutescent semi-shrub. Widespread on terraces, abundant in nesting places 

 of Larus occidentalis Audubon, the Western Gull. On all the islands; 

 mainland coast from Baja California to central California. Endemic to 

 areas of California martime climate. 



NYCTAGINACEAE 



Mirabilis laevis (Benth.) Curran. Four O'clock. 



Suffrutescent perennial. Locally common on southern breaks and talus 

 slopes. Also reported on Santa Rosa, Santa Cruz, and Santa Catalina; dry 

 canyon slopes and washes on mainland. Taxonomic status uncertain. In- 

 digenous. 



AIZOCEAE 



Mesembryanthemum crystallinum L. Ice Plant. 



Succulent annual, but apparently perennial in the large colonies. On all 

 the islands; mainland coast. Introduced from Africa. 



Mese?nbryanthemum nodiflorum L. Small-leaved Ice Plant. 



Succulent annual. Widespread on the terraces with small, closed colonies. 

 On all the islands; mainland coast. Introduced from the Mediterranean 

 region and Africa. 



PAPAVERACEAE 



Platystemon californicus Benth. var. ciliatus Dunkle. Pigmy Cream Cup. 



Annual. One colony on windswept northern bench, in coarse, shallow soil. 

 Endemic to Santa Barbara Island. 



Eschscholtzia elegans Greene. Island Poppy. 



Annual. A single plant on south exposure of Cave Canyon. On all the 

 islands, including Guadalupe. Insular endemic. 



Papaver heterophyllum (Benth.) Greene. Wind Poppy. 



Annual, A single report for Santa Barbara, by Bond. On all the islands 

 except San Nicolas; mainland. Indigenous. 



