World Botanical Associates Web Page
Prepared by Richard W. Spjut
Allenrolfea occidentalis (Halostachys occidentalis S. Watson 1871) Kuntze 1891. Iodine bush. Densely branched shrub to 2 m high and broad with alternate branching and jointed stems, the stems green and succulent when young, the green parts like a string of juicy rosary beads, older stems brownish and leathery; leaves scale-like. Flowering in the summer, flowers inconspicuous along a terminal axis, without petals, only a 4–5 lobed minute green calyx (1–1.5 mm) that in fruit covers the utricular pericarpium. Common about moist alkali valleys or flats and dunes bordering dry salt lakes; Oregon, Utah to central and eastern California, and to the Cape Region in Baja California. Iodine bush scrub recognized in MCV2 when dominant with >2% cover. Type from the Great Salt Lake, UT. Kern Co.: “Common shrub of alkali sinks in the desert and the valley, occurring sporadically west to Soda Lake and northwest to the Cholame Valley in San Luis Obispo County” (Twisselmann), 23–747 m (CCH).