The following Participating Institutions are custodians for this species in the CPC National Collection:
Arizona-Sonora Desert Museum
Santa Barbara Botanic Garden
The conservation of Monolopia congdonii is fully sponsored.
Dieter Wilken contributed to this Plant Profile.
This diminutive annual has been lost from much of it original range in the southern San Joaquin Valley as a result of agriculture and urbanization. It once occurred within what is now the city limits of Bakersfield (Twisselmann 1956, 1967). A member of the sunflower family, Monolopia congdonii also has been placed historically in Eatonella and Lembertia, but is probably best considered a member of Monolopia (Johnson 2006; Baldwin 1999), based on a re-evaluation of molecular and morphological data. Plants range from a few cm to about 10 cm tall, and bear slender, arching or reclining branches with somewhat woolly leaves. The yellow-flowered heads are less than a centimeter in length, and are usually found in upper axils or at the tips of the shoots. Flowering and fruiting plants can be found from February through early April.
Distribution & Occurrence
Typical habitats include flats and gentle slopes with sandy to gravelly soils. Typical plant communities include open grasslands and shrublands dominated by salt-bush (Atriplex) or Mormon tea (Ephedra) (Taylor 1987; Williams et al. 1998).
|Fewer than 25 among 87 documented occurrences remained extant by the end of 1990s. The number of plants varies from year to year, based on winter precipitation records, with upwards of 20,000 individuals counted during exceptional years with above average precipitation. However, many occurrences are based on reports of from 5 to 50 individuals in years with average precipitation.|
Conservation, Ecology & Research
Development of a propagation protocol to be applied to in situ conditions
Hoover, R.F. 1970. The vascular plants of San Luis Obispo County, California. Berkeley. University of California Press. 350p.
Munz, P.A. 1959. A California flora. Berkeley. University of California Press. 1681p.