Chamaesyce dioica, Royal Sandmat
Scientific Name: Chamaesyce dioica
Common Name: Royal Sandmat
Family: Euphorbiaceae, Spurge or Euphorbias Family
Synonyms: (Chamaesyce indivisa and Euphorbia indivisa)
Size: Low growing prostrate.
Growth Form: Forb/herb; prostrate
Leaves: Green; hairy pubescence at least abaxial, leaf shape variable; obovate or oblanceolate, margins with teeth near tips (apex), asymmetric at base, small teeth.
Flower Color: Cream to pink petaloid appendages; 2 appendages much larger than the others, inflorescence resembles a "flower", flowers appear clustered in axils, actual flowers small or inconspicuous, monecious, botanically the "flower" is a cyathium, fruit a capsule.
Flowering Season: August to October.
Elevation: 2,500 to 5,000 feet.
Habitat Preferences: Sandy, often rocky washes.
Recorded Range: Another rare Chamaesyce in the United States where it is native to Arizona, New Mexico and Texas. Largest populations of this species occur in southern Arizona. It is also native to northern Mexico.
U.S. Weed Information: No information available.
Invasive/Noxious Weed Information: No information available.
Wetland Indicator: No information available.
Threatened/Endangered Information: No information available. OR The (state or fed agency) has listed (species or variety) a (status).
Comments: Royal Sandmat is not too difficult to identify with its cream or pinkish appendages where 2 are much larger than the others and the "flowers" are clustered in axils.
In Southwest Desert Flora also see: Whitemargin Sandmat, Chamaesyce albomarginata; Arizona Sandmat, Chamaesyce arizonica; Head Sandmat, Chamaesyce capitellata; Chiricahua Mountain Sandmat, Chamaesyce florida; Hyssopleaf Sandmat, Chamaesyce hyssopifolia; Red-gland Sandmat, Chamaesyce melanadenia; Carrizo Mountain Sandmat, Chamaesyce pediculifera; Threadstem Sandmat, Chamaesyce revoluta and Yuma Sandmat, Chamaesyce setiloba.