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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
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|Family: Boraginaceae||View Description||Dichotomous Key|
|Genus: Plagiobothrys||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Plagiobothrys glaber (A. Gray) I.M. Johnst.
Habit: Annual, sparse-short-strigose. Stem: ascending to erect, 1--2 dm, thick, hollow. Leaf: cauline, lower 2--11 mm. Inflorescence: dense, bracts below; pedicels 0.5--2 mm, thick, hollow. Flower: calyx 3 mm, 8--10 mm in fruit, narrow, basal 2--3 mm fused into fleshy cylinder, lobes appressed, +- spreading at tip, oblong to spoon-shaped, midveins thick; corolla limb +- 3 mm diam. Fruit: nutlet 1.8--2 mm, lanceolate to lance-ovate, shiny, dark brown, attached firmly; abaxial ridge narrow, obscure below middle, cross-ribs above middle, few, rounded, wrinkled, +- flat below, +- tubercled; margins with entire border; adaxial ridge V-shaped, fine- to obscure-granular to smooth; scar basal, generally on peg.
Ecology: Presumed extinct. Wet, saline, +- alkaline soils in valleys, coastal marshes; Elevation: < 100 m. Bioregional Distribution: CCo, s SnFrB (Hollister). Flowering Time: Apr--May
Unabridged Note: As noted by C.V. Piper in 1920, Plagiobothrys glaber and succulent forms of Plagiobothrys stipitatus var. micranthus can be distinguished by nutlets (the latter coarse- and conspicuous-granular adaxially, with margin border not entire).
eFlora Treatment Author: Ronald B. Kelley, Robert Patterson, Richard R. Halse & Timothy C. Messick, family description, key to genera; treatment of genera by Ronald B. Kelley
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Plagiobothrys fulvus var. campestris
Next taxon: Plagiobothrys glyptocarpus
Citation for this treatment: Ronald B. Kelley, Robert Patterson, Richard R. Halse & Timothy C. Messick, family description, key to genera; treatment of genera by Ronald B. Kelley 2017. Plagiobothrys glaber, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=38498, accessed on January 16, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 16, 2017.