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|Family: Boraginaceae||View Description||Dichotomous Key|
|Genus: Amsinckia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Amsinckia retrorsa Suksd.
Habit: Herbage +- gray, bristly, softer appressed- to reflexed-hairy below. Stem: erect, branches 0 (few above). Flower: calyx lobes 5, +- equal in width, not fused above base; corolla 5--8 mm, limb 1.5--3 mm diam, +- yellow, tube not exserted, 10-veined near base, limb generally unmarked; anthers generally appressed to stigma; style included. Fruit: 2--3 mm, +- dense-sharp-tubercled, ridged or not. Chromosomes: 2n=16,26.
Ecology: Shade-intolerant, disturbed, dry sites, roadsides; Elevation: < 1600(2250) m. Bioregional Distribution: CA (rare D); Distribution Outside California: to southeastern British Columbia, Idaho, Utah. Flowering Time: Feb--May Note: Homostylous.
Synonyms: Amsinckia helleri Brand, Amsinckia parviflora A. Heller
Unabridged Note: Occasionally hybridizes with Amsinckia menziesii var. intermedia. Amsinckia retrorsa is confused with the very distinctive and uncommon Amsinckia menziesii var. menziesii; generally occurring as solitary individuals to occasionally small colonies.
eFlora Treatment Author: Ronald B. Kelley & Fred R. Ganders
Jepson Online Interchange
Previous taxon: Amsinckia menziesii
Next taxon: Amsinckia spectabilis
Citation for this treatment: Ronald B. Kelley & Fred R. Ganders 2016. Amsinckia retrorsa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=13147, accessed on April 30, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on April 30, 2016.